Home / 18,714,747.40-28,024,881.90-12,290,216.20

Finding the Fourth Proportional to 18,714,747.40, 28,024,881.90 and 12,290,216.20

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Solution

The fourth proportional to 18,714,747.40, 28,024,881.90 and 12,290,216.20 is: 18,404,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,747.40 : 28,024,881.90 = 12,290,216.20 : x
  2. Step 2: Convert to fraction form
    18,714,747.40/28,024,881.90 = 12,290,216.20/x
  3. Step 3: Cross multiply
    18,714,747.40x = 28,024,881.90 × 12,290,216.20
  4. Step 4: Simplify right side
    18,714,747.40x = 344,431,857,530,466.75
  5. Step 5: Solve for x
    x = 344,431,857,530,466.75/18,714,747.40
  6. Step 6: Final answer
    x = 18,404,301.71

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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.