Home / 100,051,767.20-137,961,796.56-65,179,789.76

Finding the Fourth Proportional to 100,051,767.20, 137,961,796.56 and 65,179,789.76

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Solution

The fourth proportional to 100,051,767.20, 137,961,796.56 and 65,179,789.76 is: 89,876,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,051,767.20 : 137,961,796.56 = 65,179,789.76 : x
  2. Step 2: Convert to fraction form
    100,051,767.20/137,961,796.56 = 65,179,789.76/x
  3. Step 3: Cross multiply
    100,051,767.20x = 137,961,796.56 × 65,179,789.76
  4. Step 4: Simplify right side
    100,051,767.20x = 8,992,320,894,792,520
  5. Step 5: Solve for x
    x = 8,992,320,894,792,520/100,051,767.20
  6. Step 6: Final answer
    x = 89,876,682.30

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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.