Home / 87,948,099.19-121,368,519.89-48,789,876.88

Finding the Fourth Proportional to 87,948,099.19, 121,368,519.89 and 48,789,876.88

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Solution

The fourth proportional to 87,948,099.19, 121,368,519.89 and 48,789,876.88 is: 67,330,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,948,099.19 : 121,368,519.89 = 48,789,876.88 : x
  2. Step 2: Convert to fraction form
    87,948,099.19/121,368,519.89 = 48,789,876.88/x
  3. Step 3: Cross multiply
    87,948,099.19x = 121,368,519.89 × 48,789,876.88
  4. Step 4: Simplify right side
    87,948,099.19x = 5,921,555,142,540,931
  5. Step 5: Solve for x
    x = 5,921,555,142,540,931/87,948,099.19
  6. Step 6: Final answer
    x = 67,330,109.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.