Home / 87,659,439.10-131,489,158.65-85,140,015.10

Finding the Fourth Proportional to 87,659,439.10, 131,489,158.65 and 85,140,015.10

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Solution

The fourth proportional to 87,659,439.10, 131,489,158.65 and 85,140,015.10 is: 127,710,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,659,439.10 : 131,489,158.65 = 85,140,015.10 : x
  2. Step 2: Convert to fraction form
    87,659,439.10/131,489,158.65 = 85,140,015.10/x
  3. Step 3: Cross multiply
    87,659,439.10x = 131,489,158.65 × 85,140,015.10
  4. Step 4: Simplify right side
    87,659,439.10x = 11,194,988,952,947,296
  5. Step 5: Solve for x
    x = 11,194,988,952,947,296/87,659,439.10
  6. Step 6: Final answer
    x = 127,710,022.65

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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.