Home / 81,785,358.30-122,573,839.05-43,465,230.30

Finding the Fourth Proportional to 81,785,358.30, 122,573,839.05 and 43,465,230.30

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Solution

The fourth proportional to 81,785,358.30, 122,573,839.05 and 43,465,230.30 is: 65,142,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,785,358.30 : 122,573,839.05 = 43,465,230.30 : x
  2. Step 2: Convert to fraction form
    81,785,358.30/122,573,839.05 = 43,465,230.30/x
  3. Step 3: Cross multiply
    81,785,358.30x = 122,573,839.05 × 43,465,230.30
  4. Step 4: Simplify right side
    81,785,358.30x = 5,327,700,143,063,383
  5. Step 5: Solve for x
    x = 5,327,700,143,063,383/81,785,358.30
  6. Step 6: Final answer
    x = 65,142,468.70

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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.