I am working through another portion of my math book and the question states.

Mars Orbits 1.5 AU (astronomical units) from the sun what is that distance in CM?

AU= $\displaystyle 1.5x10^{11}$

$\displaystyle 1.5x10^{11}*1.5$=$\displaystyle 2.25e^{11}$

1 meter = 39.36 inches

1 inch = 2.54 centimeters

1 cm = .394 inches

I attempted it this way but the answer was incorrect.

$\displaystyle 2.25e^{11}x\frac{1 meter}{39.36 inches} * \frac{1 Inch}{2.54 centimeters}

$

Now where do I go from here? You do not have to solve for me but if someone would please show me the steps it would be much appreciated.