Home / 129,923,607.96-179,250,439.85-74,128,945.97

Finding the Fourth Proportional to 129,923,607.96, 179,250,439.85 and 74,128,945.97

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Solution

The fourth proportional to 129,923,607.96, 179,250,439.85 and 74,128,945.97 is: 102,272,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,923,607.96 : 179,250,439.85 = 74,128,945.97 : x
  2. Step 2: Convert to fraction form
    129,923,607.96/179,250,439.85 = 74,128,945.97/x
  3. Step 3: Cross multiply
    129,923,607.96x = 179,250,439.85 × 74,128,945.97
  4. Step 4: Simplify right side
    129,923,607.96x = 13,287,646,170,739,384
  5. Step 5: Solve for x
    x = 13,287,646,170,739,384/129,923,607.96
  6. Step 6: Final answer
    x = 102,272,761.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.