Home / 12,446,951.40-18,670,427.10-8,142,279.30

Finding the Fourth Proportional to 12,446,951.40, 18,670,427.10 and 8,142,279.30

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Solution

The fourth proportional to 12,446,951.40, 18,670,427.10 and 8,142,279.30 is: 12,213,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446,951.40 : 18,670,427.10 = 8,142,279.30 : x
  2. Step 2: Convert to fraction form
    12,446,951.40/18,670,427.10 = 8,142,279.30/x
  3. Step 3: Cross multiply
    12,446,951.40x = 18,670,427.10 × 8,142,279.30
  4. Step 4: Simplify right side
    12,446,951.40x = 152,019,832,098,489.03
  5. Step 5: Solve for x
    x = 152,019,832,098,489.03/12,446,951.40
  6. Step 6: Final answer
    x = 12,213,418.95

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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.