Home / 12,454,626.20-18,681,939.30-7,415,778.20

Finding the Fourth Proportional to 12,454,626.20, 18,681,939.30 and 7,415,778.20

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Solution

The fourth proportional to 12,454,626.20, 18,681,939.30 and 7,415,778.20 is: 11,123,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454,626.20 : 18,681,939.30 = 7,415,778.20 : x
  2. Step 2: Convert to fraction form
    12,454,626.20/18,681,939.30 = 7,415,778.20/x
  3. Step 3: Cross multiply
    12,454,626.20x = 18,681,939.30 × 7,415,778.20
  4. Step 4: Simplify right side
    12,454,626.20x = 138,541,118,194,663.27
  5. Step 5: Solve for x
    x = 138,541,118,194,663.27/12,454,626.20
  6. Step 6: Final answer
    x = 11,123,667.30

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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.