Home / 12,209,349.20-18,314,023.80-3,691,000.40

Finding the Fourth Proportional to 12,209,349.20, 18,314,023.80 and 3,691,000.40

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Solution

The fourth proportional to 12,209,349.20, 18,314,023.80 and 3,691,000.40 is: 5,536,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209,349.20 : 18,314,023.80 = 3,691,000.40 : x
  2. Step 2: Convert to fraction form
    12,209,349.20/18,314,023.80 = 3,691,000.40/x
  3. Step 3: Cross multiply
    12,209,349.20x = 18,314,023.80 × 3,691,000.40
  4. Step 4: Simplify right side
    12,209,349.20x = 67,597,069,171,409.52
  5. Step 5: Solve for x
    x = 67,597,069,171,409.52/12,209,349.20
  6. Step 6: Final answer
    x = 5,536,500.60

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Similar ratio
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1.5x scale

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.