New York has a population of 20,000,000 in a 50,000 sqaure mile area.

Illinois has a population of 12,000,000 in a 80,000 square mile area.

How many people from New York would have to move to have the same population density as Illinois.

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- April 26th 2007, 12:55 PMMr_GreenPopulation Density
New York has a population of 20,000,000 in a 50,000 sqaure mile area.

Illinois has a population of 12,000,000 in a 80,000 square mile area.

How many people from New York would have to move to have the same population density as Illinois. - April 26th 2007, 01:06 PMJhevon
Let P1 be the population of NY that achieves the same population density

Let P2 be the population of Illinois that achieves the same population density

we want,

P1/50000 = P2/80000

=> P1 = (5/8)P2

Now P1 + P2 = 20 000 000 + 12 000 000 = 32 000 000

=> (5/8)P2 + P2 = 32 000 000

=> (13/8)P2 = 32 000 000

=> P2 ~= 19 692 308

=> P1 ~= 12307693

So the amount of people that have to move from NY is: 20 000 000 - 12 307 693 = 7 692 307