Home / 125,218,272.20-187,827,408.30-86,954,520.20

Finding the Fourth Proportional to 125,218,272.20, 187,827,408.30 and 86,954,520.20

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Solution

The fourth proportional to 125,218,272.20, 187,827,408.30 and 86,954,520.20 is: 130,431,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,218,272.20 : 187,827,408.30 = 86,954,520.20 : x
  2. Step 2: Convert to fraction form
    125,218,272.20/187,827,408.30 = 86,954,520.20/x
  3. Step 3: Cross multiply
    125,218,272.20x = 187,827,408.30 × 86,954,520.20
  4. Step 4: Simplify right side
    125,218,272.20x = 16,332,442,169,136,000
  5. Step 5: Solve for x
    x = 16,332,442,169,136,000/125,218,272.20
  6. Step 6: Final answer
    x = 130,431,780.30

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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.