Home / 19,928,052.30-29,892,078.45-12,747,693.90

Finding the Fourth Proportional to 19,928,052.30, 29,892,078.45 and 12,747,693.90

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Solution

The fourth proportional to 19,928,052.30, 29,892,078.45 and 12,747,693.90 is: 19,121,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,052.30 : 29,892,078.45 = 12,747,693.90 : x
  2. Step 2: Convert to fraction form
    19,928,052.30/29,892,078.45 = 12,747,693.90/x
  3. Step 3: Cross multiply
    19,928,052.30x = 29,892,078.45 × 12,747,693.90
  4. Step 4: Simplify right side
    19,928,052.30x = 381,055,066,115,386.44
  5. Step 5: Solve for x
    x = 381,055,066,115,386.44/19,928,052.30
  6. Step 6: Final answer
    x = 19,121,540.85

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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.