Home / 100,051,769.20-137,961,799.32-65,179,791.76

Finding the Fourth Proportional to 100,051,769.20, 137,961,799.32 and 65,179,791.76

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Solution

The fourth proportional to 100,051,769.20, 137,961,799.32 and 65,179,791.76 is: 89,876,685.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,051,769.20 : 137,961,799.32 = 65,179,791.76 : x
  2. Step 2: Convert to fraction form
    100,051,769.20/137,961,799.32 = 65,179,791.76/x
  3. Step 3: Cross multiply
    100,051,769.20x = 137,961,799.32 × 65,179,791.76
  4. Step 4: Simplify right side
    100,051,769.20x = 8,992,321,350,512,509
  5. Step 5: Solve for x
    x = 8,992,321,350,512,509/100,051,769.20
  6. Step 6: Final answer
    x = 89,876,685.06

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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.