Home / 87,803,999.70-131,705,999.55-86,124,383.70

Finding the Fourth Proportional to 87,803,999.70, 131,705,999.55 and 86,124,383.70

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Solution

The fourth proportional to 87,803,999.70, 131,705,999.55 and 86,124,383.70 is: 129,186,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803,999.70 : 131,705,999.55 = 86,124,383.70 : x
  2. Step 2: Convert to fraction form
    87,803,999.70/131,705,999.55 = 86,124,383.70/x
  3. Step 3: Cross multiply
    87,803,999.70x = 131,705,999.55 × 86,124,383.70
  4. Step 4: Simplify right side
    87,803,999.70x = 11,343,098,040,836,228
  5. Step 5: Solve for x
    x = 11,343,098,040,836,228/87,803,999.70
  6. Step 6: Final answer
    x = 129,186,575.55

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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.