Finding the Fourth Proportional to 461,387,315.70, 636,689,847.69 and 252,503,057.70
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Solution
The fourth proportional to 461,387,315.70, 636,689,847.69 and 252,503,057.70 is: 348,440,730.55
Step by Step Solution
- Step 1: Write the proportion equation
461,387,315.70 : 636,689,847.69 = 252,503,057.70 : x - Step 2: Convert to fraction form
461,387,315.70/636,689,847.69 = 252,503,057.70/x - Step 3: Cross multiply
461,387,315.70x = 636,689,847.69 × 252,503,057.70 - Step 4: Simplify right side
461,387,315.70x = 160,766,133,348,272,288 - Step 5: Solve for x
x = 160,766,133,348,272,288/461,387,315.70 - Step 6: Final answer
x = 348,440,730.55
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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.