Home / 275,391,081.27-380,049,019.56-149,948,142.21

Finding the Fourth Proportional to 275,391,081.27, 380,049,019.56 and 149,948,142.21

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Solution

The fourth proportional to 275,391,081.27, 380,049,019.56 and 149,948,142.21 is: 206,933,514.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,391,081.27 : 380,049,019.56 = 149,948,142.21 : x
  2. Step 2: Convert to fraction form
    275,391,081.27/380,049,019.56 = 149,948,142.21/x
  3. Step 3: Cross multiply
    275,391,081.27x = 380,049,019.56 × 149,948,142.21
  4. Step 4: Simplify right side
    275,391,081.27x = 56,987,644,431,753,952
  5. Step 5: Solve for x
    x = 56,987,644,431,753,952/275,391,081.27
  6. Step 6: Final answer
    x = 206,933,514.95

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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.