Results 1 to 3 of 3

Math Help - Help with Geometric means

  1. #1
    Newbie
    Joined
    Aug 2010
    Posts
    6

    Help with Geometric means

    I am asked to find the geometric means of 8 and 20

    I set up this formula:


    8 x
    _ __

    X 20

    edit: the formatting came out inaccurate, but the formula that I set up was 8 over X and X over 20.

    But my answer came out to be a decimal answer. The back of my textbook has the answer 4 squareroot 10

    Please help me! Also, please elaborate the steps with how to get that answer. Thank You!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member Sambit's Avatar
    Joined
    Oct 2010
    Posts
    355
    Geometric Mean of 'n' numbers is defined as the '1/n'th power of the product of the 'n' terms. You have 2 terms here. Try to work out accordingly.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by GLAMX View Post
    I am asked to find the geometric means of 8 and 20

    I set up this formula:


    8 x
    _ __

    X 20

    edit: the formatting came out inaccurate, but the formula that I set up was 8 over X and X over 20.

    But my answer came out to be a decimal answer. The back of my textbook has the answer 4 squareroot 10

    Please help me! Also, please elaborate the steps with how to get that answer. Thank You!
    Did you review the definition of geometric mean before attempting this question?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 0
    Last Post: December 14th 2011, 05:02 AM
  2. inequality relating to arithmetic and geometric means
    Posted in the Differential Geometry Forum
    Replies: 1
    Last Post: December 9th 2009, 08:51 PM
  3. Airthmetic-geometric means problem?
    Posted in the Algebra Forum
    Replies: 1
    Last Post: November 25th 2007, 08:31 AM
  4. Geometric and quadratic means
    Posted in the Number Theory Forum
    Replies: 14
    Last Post: May 6th 2007, 02:03 AM
  5. Arithmetic/Geometric Means
    Posted in the Algebra Forum
    Replies: 4
    Last Post: September 17th 2006, 11:43 AM

Search Tags


/mathhelpforum @mathhelpforum