Home / 87,428,731.57-131,134,110.38-29,130,112.87

Finding the Fourth Proportional to 87,428,731.57, 131,134,110.38 and 29,130,112.87

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Solution

The fourth proportional to 87,428,731.57, 131,134,110.38 and 29,130,112.87 is: 43,692,174.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,428,731.57 : 131,134,110.38 = 29,130,112.87 : x
  2. Step 2: Convert to fraction form
    87,428,731.57/131,134,110.38 = 29,130,112.87/x
  3. Step 3: Cross multiply
    87,428,731.57x = 131,134,110.38 × 29,130,112.87
  4. Step 4: Simplify right side
    87,428,731.57x = 3,819,951,437,013,531.50
  5. Step 5: Solve for x
    x = 3,819,951,437,013,531.50/87,428,731.57
  6. Step 6: Final answer
    x = 43,692,174.97

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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.