Home / 862,305,753.60-1,293,647,587.20-425,815,545.60

Finding the Fourth Proportional to 862,305,753.60, 1,293,647,587.20 and 425,815,545.60

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Solution

The fourth proportional to 862,305,753.60, 1,293,647,587.20 and 425,815,545.60 is: 638,816,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,305,753.60 : 1,293,647,587.20 = 425,815,545.60 : x
  2. Step 2: Convert to fraction form
    862,305,753.60/1,293,647,587.20 = 425,815,545.60/x
  3. Step 3: Cross multiply
    862,305,753.60x = 1,293,647,587.20 × 425,815,545.60
  4. Step 4: Simplify right side
    862,305,753.60x = 550,855,253,157,691,648
  5. Step 5: Solve for x
    x = 550,855,253,157,691,648/862,305,753.60
  6. Step 6: Final answer
    x = 638,816,627.23

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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.