Home / 87,343,729.60-131,015,594.40-86,776,859.20

Finding the Fourth Proportional to 87,343,729.60, 131,015,594.40 and 86,776,859.20

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Solution

The fourth proportional to 87,343,729.60, 131,015,594.40 and 86,776,859.20 is: 130,165,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,343,729.60 : 131,015,594.40 = 86,776,859.20 : x
  2. Step 2: Convert to fraction form
    87,343,729.60/131,015,594.40 = 86,776,859.20/x
  3. Step 3: Cross multiply
    87,343,729.60x = 131,015,594.40 × 86,776,859.20
  4. Step 4: Simplify right side
    87,343,729.60x = 11,369,121,788,253,110
  5. Step 5: Solve for x
    x = 11,369,121,788,253,110/87,343,729.60
  6. Step 6: Final answer
    x = 130,165,288.80

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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.