Home / 20,226,721.32-27,920,466.11-13,257,847.97

Finding the Fourth Proportional to 20,226,721.32, 27,920,466.11 and 13,257,847.97

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Solution

The fourth proportional to 20,226,721.32, 27,920,466.11 and 13,257,847.97 is: 18,300,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226,721.32 : 27,920,466.11 = 13,257,847.97 : x
  2. Step 2: Convert to fraction form
    20,226,721.32/27,920,466.11 = 13,257,847.97/x
  3. Step 3: Cross multiply
    20,226,721.32x = 27,920,466.11 × 13,257,847.97
  4. Step 4: Simplify right side
    20,226,721.32x = 370,165,295,040,863.12
  5. Step 5: Solve for x
    x = 370,165,295,040,863.12/20,226,721.32
  6. Step 6: Final answer
    x = 18,300,805.61

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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.