Home / 87,687,713.60-131,531,570.40-84,104,532.80

Finding the Fourth Proportional to 87,687,713.60, 131,531,570.40 and 84,104,532.80

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Solution

The fourth proportional to 87,687,713.60, 131,531,570.40 and 84,104,532.80 is: 126,156,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,687,713.60 : 131,531,570.40 = 84,104,532.80 : x
  2. Step 2: Convert to fraction form
    87,687,713.60/131,531,570.40 = 84,104,532.80/x
  3. Step 3: Cross multiply
    87,687,713.60x = 131,531,570.40 × 84,104,532.80
  4. Step 4: Simplify right side
    87,687,713.60x = 11,062,401,276,942,310
  5. Step 5: Solve for x
    x = 11,062,401,276,942,310/87,687,713.60
  6. Step 6: Final answer
    x = 126,156,799.20

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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.