Home / 82,518,188.58-123,781,394.28-31,404,168.90

Finding the Fourth Proportional to 82,518,188.58, 123,781,394.28 and 31,404,168.90

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Solution

The fourth proportional to 82,518,188.58, 123,781,394.28 and 31,404,168.90 is: 47,107,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,518,188.58 : 123,781,394.28 = 31,404,168.90 : x
  2. Step 2: Convert to fraction form
    82,518,188.58/123,781,394.28 = 31,404,168.90/x
  3. Step 3: Cross multiply
    82,518,188.58x = 123,781,394.28 × 31,404,168.90
  4. Step 4: Simplify right side
    82,518,188.58x = 3,887,251,812,646,613.50
  5. Step 5: Solve for x
    x = 3,887,251,812,646,613.50/82,518,188.58
  6. Step 6: Final answer
    x = 47,107,818.04

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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.