Home / 87,500,987.13-131,279,519.75-61,267,149.51

Finding the Fourth Proportional to 87,500,987.13, 131,279,519.75 and 61,267,149.51

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Solution

The fourth proportional to 87,500,987.13, 131,279,519.75 and 61,267,149.51 is: 91,920,356.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,500,987.13 : 131,279,519.75 = 61,267,149.51 : x
  2. Step 2: Convert to fraction form
    87,500,987.13/131,279,519.75 = 61,267,149.51/x
  3. Step 3: Cross multiply
    87,500,987.13x = 131,279,519.75 × 61,267,149.51
  4. Step 4: Simplify right side
    87,500,987.13x = 8,043,121,963,817,912
  5. Step 5: Solve for x
    x = 8,043,121,963,817,912/87,500,987.13
  6. Step 6: Final answer
    x = 91,920,356.87

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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.