Finding the Fourth Proportional to 87,377,397.68, 120,583,704.99 and 47,687,101.73
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Solution
The fourth proportional to 87,377,397.68, 120,583,704.99 and 47,687,101.73 is: 65,809,781.01
Step by Step Solution
- Step 1: Write the proportion equation
87,377,397.68 : 120,583,704.99 = 47,687,101.73 : x - Step 2: Convert to fraction form
87,377,397.68/120,583,704.99 = 47,687,101.73/x - Step 3: Cross multiply
87,377,397.68x = 120,583,704.99 × 47,687,101.73 - Step 4: Simplify right side
87,377,397.68x = 5,750,287,406,838,438 - Step 5: Solve for x
x = 5,750,287,406,838,438/87,377,397.68 - Step 6: Final answer
x = 65,809,781.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.