Home / 82,518,164.83-123,781,358.63-31,404,145.15

Finding the Fourth Proportional to 82,518,164.83, 123,781,358.63 and 31,404,145.15

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Solution

The fourth proportional to 82,518,164.83, 123,781,358.63 and 31,404,145.15 is: 47,107,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,518,164.83 : 123,781,358.63 = 31,404,145.15 : x
  2. Step 2: Convert to fraction form
    82,518,164.83/123,781,358.63 = 31,404,145.15/x
  3. Step 3: Cross multiply
    82,518,164.83x = 123,781,358.63 × 31,404,145.15
  4. Step 4: Simplify right side
    82,518,164.83x = 3,887,247,753,123,704
  5. Step 5: Solve for x
    x = 3,887,247,753,123,704/82,518,164.83
  6. Step 6: Final answer
    x = 47,107,782.40

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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.