Finding the Fourth Proportional to 71,754,051.97, 99,023,811.42 and 40,402,882.09
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Solution
The fourth proportional to 71,754,051.97, 99,023,811.42 and 40,402,882.09 is: 55,757,790.22
Step by Step Solution
- Step 1: Write the proportion equation
71,754,051.97 : 99,023,811.42 = 40,402,882.09 : x - Step 2: Convert to fraction form
71,754,051.97/99,023,811.42 = 40,402,882.09/x - Step 3: Cross multiply
71,754,051.97x = 99,023,811.42 × 40,402,882.09 - Step 4: Simplify right side
71,754,051.97x = 4,000,847,376,904,656 - Step 5: Solve for x
x = 4,000,847,376,904,656/71,754,051.97 - Step 6: Final answer
x = 55,757,790.22
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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.