How many times is 4•10^4 larger than 2•10^2

To find out how many times one quantity is larger than another, you divide the first quantity by the second.

Here, the first quantity is 4•10^4 and the second quantity is 2•10^2.

Dividing 4•10^4 by 2•10^2, we get:

(4•10^4) / (2•10^2) = (4/2) • (10^4/10^2) = 2 • 10^(4-2) = 2 • 10^2 = 200

Therefore, 4•10^4 is 200 times larger than 2•10^2.