Home / 87,415,963.60-131,123,945.40-82,936,987.60

Finding the Fourth Proportional to 87,415,963.60, 131,123,945.40 and 82,936,987.60

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Solution

The fourth proportional to 87,415,963.60, 131,123,945.40 and 82,936,987.60 is: 124,405,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,415,963.60 : 131,123,945.40 = 82,936,987.60 : x
  2. Step 2: Convert to fraction form
    87,415,963.60/131,123,945.40 = 82,936,987.60/x
  3. Step 3: Cross multiply
    87,415,963.60x = 131,123,945.40 × 82,936,987.60
  4. Step 4: Simplify right side
    87,415,963.60x = 10,875,025,033,702,876
  5. Step 5: Solve for x
    x = 10,875,025,033,702,876/87,415,963.60
  6. Step 6: Final answer
    x = 124,405,481.40

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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.