Home / 12,461,306.60-18,691,959.90-8,206,279.40

Finding the Fourth Proportional to 12,461,306.60, 18,691,959.90 and 8,206,279.40

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Solution

The fourth proportional to 12,461,306.60, 18,691,959.90 and 8,206,279.40 is: 12,309,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461,306.60 : 18,691,959.90 = 8,206,279.40 : x
  2. Step 2: Convert to fraction form
    12,461,306.60/18,691,959.90 = 8,206,279.40/x
  3. Step 3: Cross multiply
    12,461,306.60x = 18,691,959.90 × 8,206,279.40
  4. Step 4: Simplify right side
    12,461,306.60x = 153,391,445,472,996.06
  5. Step 5: Solve for x
    x = 153,391,445,472,996.06/12,461,306.60
  6. Step 6: Final answer
    x = 12,309,419.10

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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.