Home / 521,589,227.40-781,488,045.90-275,581,470.60

Finding the Fourth Proportional to 521,589,227.40, 781,488,045.90 and 275,581,470.60

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Solution

The fourth proportional to 521,589,227.40, 781,488,045.90 and 275,581,470.60 is: 412,898,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,589,227.40 : 781,488,045.90 = 275,581,470.60 : x
  2. Step 2: Convert to fraction form
    521,589,227.40/781,488,045.90 = 275,581,470.60/x
  3. Step 3: Cross multiply
    521,589,227.40x = 781,488,045.90 × 275,581,470.60
  4. Step 4: Simplify right side
    521,589,227.40x = 215,363,624,945,442,304
  5. Step 5: Solve for x
    x = 215,363,624,945,442,304/521,589,227.40
  6. Step 6: Final answer
    x = 412,898,912.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.