Finding the Fourth Proportional to 680,726,476.96, 939,377,737.08 and 379,296,214.18
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Solution
The fourth proportional to 680,726,476.96, 939,377,737.08 and 379,296,214.18 is: 523,414,956.55
Step by Step Solution
- Step 1: Write the proportion equation
680,726,476.96 : 939,377,737.08 = 379,296,214.18 : x - Step 2: Convert to fraction form
680,726,476.96/939,377,737.08 = 379,296,214.18/x - Step 3: Cross multiply
680,726,476.96x = 939,377,737.08 × 379,296,214.18 - Step 4: Simplify right side
680,726,476.96x = 356,302,419,354,722,560 - Step 5: Solve for x
x = 356,302,419,354,722,560/680,726,476.96 - Step 6: Final answer
x = 523,414,956.55
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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.