Home / 39,186,726.12-54,078,330.78-21,546,375.48

Finding the Fourth Proportional to 39,186,726.12, 54,078,330.78 and 21,546,375.48

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Solution

The fourth proportional to 39,186,726.12, 54,078,330.78 and 21,546,375.48 is: 29,734,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,186,726.12 : 54,078,330.78 = 21,546,375.48 : x
  2. Step 2: Convert to fraction form
    39,186,726.12/54,078,330.78 = 21,546,375.48/x
  3. Step 3: Cross multiply
    39,186,726.12x = 54,078,330.78 × 21,546,375.48
  4. Step 4: Simplify right side
    39,186,726.12x = 1,165,192,020,317,521.25
  5. Step 5: Solve for x
    x = 1,165,192,020,317,521.25/39,186,726.12
  6. Step 6: Final answer
    x = 29,734,354.86

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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.