Home / 83,126,712.40-124,690,068.60-25,613,861.20

Finding the Fourth Proportional to 83,126,712.40, 124,690,068.60 and 25,613,861.20

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Solution

The fourth proportional to 83,126,712.40, 124,690,068.60 and 25,613,861.20 is: 38,420,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,126,712.40 : 124,690,068.60 = 25,613,861.20 : x
  2. Step 2: Convert to fraction form
    83,126,712.40/124,690,068.60 = 25,613,861.20/x
  3. Step 3: Cross multiply
    83,126,712.40x = 124,690,068.60 × 25,613,861.20
  4. Step 4: Simplify right side
    83,126,712.40x = 3,193,794,110,138,878
  5. Step 5: Solve for x
    x = 3,193,794,110,138,878/83,126,712.40
  6. Step 6: Final answer
    x = 38,420,791.80

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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.