Home / 551,454,221.20-826,331,026.20-478,327,939.60

Finding the Fourth Proportional to 551,454,221.20, 826,331,026.20 and 478,327,939.60

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Solution

The fourth proportional to 551,454,221.20, 826,331,026.20 and 478,327,939.60 is: 716,754,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,454,221.20 : 826,331,026.20 = 478,327,939.60 : x
  2. Step 2: Convert to fraction form
    551,454,221.20/826,331,026.20 = 478,327,939.60/x
  3. Step 3: Cross multiply
    551,454,221.20x = 826,331,026.20 × 478,327,939.60
  4. Step 4: Simplify right side
    551,454,221.20x = 395,257,217,189,799,680
  5. Step 5: Solve for x
    x = 395,257,217,189,799,680/551,454,221.20
  6. Step 6: Final answer
    x = 716,754,359.65

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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.