Home / 819,397,792.10-1,229,096,688.15-724,695,005.90

Finding the Fourth Proportional to 819,397,792.10, 1,229,096,688.15 and 724,695,005.90

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Solution

The fourth proportional to 819,397,792.10, 1,229,096,688.15 and 724,695,005.90 is: 1,087,042,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,397,792.10 : 1,229,096,688.15 = 724,695,005.90 : x
  2. Step 2: Convert to fraction form
    819,397,792.10/1,229,096,688.15 = 724,695,005.90/x
  3. Step 3: Cross multiply
    819,397,792.10x = 1,229,096,688.15 × 724,695,005.90
  4. Step 4: Simplify right side
    819,397,792.10x = 890,720,231,670,534,784
  5. Step 5: Solve for x
    x = 890,720,231,670,534,784/819,397,792.10
  6. Step 6: Final answer
    x = 1,087,042,508.85

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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.