Home / 87,529,559.52-131,176,977.04-68,122,218.72

Finding the Fourth Proportional to 87,529,559.52, 131,176,977.04 and 68,122,218.72

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Solution

The fourth proportional to 87,529,559.52, 131,176,977.04 and 68,122,218.72 is: 102,091,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,529,559.52 : 131,176,977.04 = 68,122,218.72 : x
  2. Step 2: Convert to fraction form
    87,529,559.52/131,176,977.04 = 68,122,218.72/x
  3. Step 3: Cross multiply
    87,529,559.52x = 131,176,977.04 × 68,122,218.72
  4. Step 4: Simplify right side
    87,529,559.52x = 8,936,066,720,947,298
  5. Step 5: Solve for x
    x = 8,936,066,720,947,298/87,529,559.52
  6. Step 6: Final answer
    x = 102,091,987.78

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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.