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Finding the Fourth Proportional to 8,972,327.70, 13,458,491.55 and 8,279,486.10

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Solution

The fourth proportional to 8,972,327.70, 13,458,491.55 and 8,279,486.10 is: 12,419,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972,327.70 : 13,458,491.55 = 8,279,486.10 : x
  2. Step 2: Convert to fraction form
    8,972,327.70/13,458,491.55 = 8,279,486.10/x
  3. Step 3: Cross multiply
    8,972,327.70x = 13,458,491.55 × 8,279,486.10
  4. Step 4: Simplify right side
    8,972,327.70x = 111,429,393,715,192.45
  5. Step 5: Solve for x
    x = 111,429,393,715,192.45/8,972,327.70
  6. Step 6: Final answer
    x = 12,419,229.15

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Double scale
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Similar ratio
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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.