Finding the Fourth Proportional to 72,651,398.40, 100,259,711.82 and 39,611,377.62
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Solution
The fourth proportional to 72,651,398.40, 100,259,711.82 and 39,611,377.62 is: 54,664,127.50
Step by Step Solution
- Step 1: Write the proportion equation
72,651,398.40 : 100,259,711.82 = 39,611,377.62 : x - Step 2: Convert to fraction form
72,651,398.40/100,259,711.82 = 39,611,377.62/x - Step 3: Cross multiply
72,651,398.40x = 100,259,711.82 × 39,611,377.62 - Step 4: Simplify right side
72,651,398.40x = 3,971,425,304,974,397 - Step 5: Solve for x
x = 3,971,425,304,974,397/72,651,398.40 - Step 6: Final answer
x = 54,664,127.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.