Home / 82,518,170.36-123,781,367.10-31,404,150.68

Finding the Fourth Proportional to 82,518,170.36, 123,781,367.10 and 31,404,150.68

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Solution

The fourth proportional to 82,518,170.36, 123,781,367.10 and 31,404,150.68 is: 47,107,790.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,518,170.36 : 123,781,367.10 = 31,404,150.68 : x
  2. Step 2: Convert to fraction form
    82,518,170.36/123,781,367.10 = 31,404,150.68/x
  3. Step 3: Cross multiply
    82,518,170.36x = 123,781,367.10 × 31,404,150.68
  4. Step 4: Simplify right side
    82,518,170.36x = 3,887,248,703,165,887.50
  5. Step 5: Solve for x
    x = 3,887,248,703,165,887.50/82,518,170.36
  6. Step 6: Final answer
    x = 47,107,790.76

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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.