Hiram raises earthworms. In a square of compost 4 ft by 4 ft, he can have 1000 earthworms. How many earthworms can he have if his square of compost has a side length that is 8 times longer?

64,000 I believe. What I did was find the area so 4*4 = 16. 1000/16 = 62.5 earthworms per square foot. So if the side is 8 times longer then 8*4 = 32 feet per side and to find the area of that it's 32*32 = 1024 feet squared. So 62.5 * 1024 = 64,000