Home / 87,930,312.75-129,337,821.56

Finding the Third Proportional to 87,930,312.75 and 129,337,821.56

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Solution

The third proportional to 87,930,312.75 and 129,337,821.56 is: 190,244,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,930,312.75 : 129,337,821.56 = 129,337,821.56 : x
  2. Step 2: Convert to fraction form
    87,930,312.75/129,337,821.56 = 129,337,821.56/x
  3. Step 3: Cross multiply
    87,930,312.75x = 129,337,821.56 × 129,337,821.56
  4. Step 4: Simplify right side
    87,930,312.75x = 16,728,272,086,533,090
  5. Step 5: Solve for x
    x = 16,728,272,086,533,090/87,930,312.75
  6. Step 6: Final answer
    x = 190,244,655.83

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.