Home / 87,387,009.20-131,098,009.80-25,976,049.20

Finding the Fourth Proportional to 87,387,009.20, 131,098,009.80 and 25,976,049.20

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Solution

The fourth proportional to 87,387,009.20, 131,098,009.80 and 25,976,049.20 is: 38,969,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,387,009.20 : 131,098,009.80 = 25,976,049.20 : x
  2. Step 2: Convert to fraction form
    87,387,009.20/131,098,009.80 = 25,976,049.20/x
  3. Step 3: Cross multiply
    87,387,009.20x = 131,098,009.80 × 25,976,049.20
  4. Step 4: Simplify right side
    87,387,009.20x = 3,405,408,352,586,882
  5. Step 5: Solve for x
    x = 3,405,408,352,586,882/87,387,009.20
  6. Step 6: Final answer
    x = 38,969,274.54

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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.