Home / 91,691,728.52-126,535,252.41-49,876,154.87

Finding the Fourth Proportional to 91,691,728.52, 126,535,252.41 and 49,876,154.87

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Solution

The fourth proportional to 91,691,728.52, 126,535,252.41 and 49,876,154.87 is: 68,829,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,691,728.52 : 126,535,252.41 = 49,876,154.87 : x
  2. Step 2: Convert to fraction form
    91,691,728.52/126,535,252.41 = 49,876,154.87/x
  3. Step 3: Cross multiply
    91,691,728.52x = 126,535,252.41 × 49,876,154.87
  4. Step 4: Simplify right side
    91,691,728.52x = 6,311,091,845,083,025
  5. Step 5: Solve for x
    x = 6,311,091,845,083,025/91,691,728.52
  6. Step 6: Final answer
    x = 68,829,456.56

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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.