Home / 84,876,279.41-127,223,778.89-48,406,140.78

Finding the Fourth Proportional to 84,876,279.41, 127,223,778.89 and 48,406,140.78

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Solution

The fourth proportional to 84,876,279.41, 127,223,778.89 and 48,406,140.78 is: 72,557,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,876,279.41 : 127,223,778.89 = 48,406,140.78 : x
  2. Step 2: Convert to fraction form
    84,876,279.41/127,223,778.89 = 48,406,140.78/x
  3. Step 3: Cross multiply
    84,876,279.41x = 127,223,778.89 × 48,406,140.78
  4. Step 4: Simplify right side
    84,876,279.41x = 6,158,412,151,625,720
  5. Step 5: Solve for x
    x = 6,158,412,151,625,720/84,876,279.41
  6. Step 6: Final answer
    x = 72,557,517.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.