Home / 87,982,524.20-131,973,786.30-81,605,232.20

Finding the Fourth Proportional to 87,982,524.20, 131,973,786.30 and 81,605,232.20

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Solution

The fourth proportional to 87,982,524.20, 131,973,786.30 and 81,605,232.20 is: 122,407,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,982,524.20 : 131,973,786.30 = 81,605,232.20 : x
  2. Step 2: Convert to fraction form
    87,982,524.20/131,973,786.30 = 81,605,232.20/x
  3. Step 3: Cross multiply
    87,982,524.20x = 131,973,786.30 × 81,605,232.20
  4. Step 4: Simplify right side
    87,982,524.20x = 10,769,751,475,324,680
  5. Step 5: Solve for x
    x = 10,769,751,475,324,680/87,982,524.20
  6. Step 6: Final answer
    x = 122,407,848.30

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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.