Final answer:
The ratio of A to B is approximately 0.5352. The ratio of B to A is approximately 1.8660. A is 53.52% of B.
Step-by-step explanation:
a. To find the ratio of A to B, we divide A by B: 43,483,000 / 81,215,000 = 0.5352
b. To find the ratio of B to A, we divide B by A: 81,215,000 / 43,483,000 = 1.8660
c. To complete the sentence 'A is percent of B,' we can calculate the percentage by multiplying the ratio of A to B by 100: 0.5352 * 100 = 53.52%
Learn more about Comparing ratios