Home / 91,151,458.97-125,789,003.87-49,335,516.86

Finding the Fourth Proportional to 91,151,458.97, 125,789,003.87 and 49,335,516.86

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Solution

The fourth proportional to 91,151,458.97, 125,789,003.87 and 49,335,516.86 is: 68,083,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,151,458.97 : 125,789,003.87 = 49,335,516.86 : x
  2. Step 2: Convert to fraction form
    91,151,458.97/125,789,003.87 = 49,335,516.86/x
  3. Step 3: Cross multiply
    91,151,458.97x = 125,789,003.87 × 49,335,516.86
  4. Step 4: Simplify right side
    91,151,458.97x = 6,205,865,520,355,367
  5. Step 5: Solve for x
    x = 6,205,865,520,355,367/91,151,458.97
  6. Step 6: Final answer
    x = 68,083,008.11

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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.