Home / 766,600,400.10-1,149,900,600.15-491,101,385.70

Finding the Fourth Proportional to 766,600,400.10, 1,149,900,600.15 and 491,101,385.70

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Solution

The fourth proportional to 766,600,400.10, 1,149,900,600.15 and 491,101,385.70 is: 736,652,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,600,400.10 : 1,149,900,600.15 = 491,101,385.70 : x
  2. Step 2: Convert to fraction form
    766,600,400.10/1,149,900,600.15 = 491,101,385.70/x
  3. Step 3: Cross multiply
    766,600,400.10x = 1,149,900,600.15 × 491,101,385.70
  4. Step 4: Simplify right side
    766,600,400.10x = 564,717,778,150,926,656
  5. Step 5: Solve for x
    x = 564,717,778,150,926,656/766,600,400.10
  6. Step 6: Final answer
    x = 736,652,078.55

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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.