Home / 12,454,562.20-18,681,843.30-7,415,714.20

Finding the Fourth Proportional to 12,454,562.20, 18,681,843.30 and 7,415,714.20

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Solution

The fourth proportional to 12,454,562.20, 18,681,843.30 and 7,415,714.20 is: 11,123,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454,562.20 : 18,681,843.30 = 7,415,714.20 : x
  2. Step 2: Convert to fraction form
    12,454,562.20/18,681,843.30 = 7,415,714.20/x
  3. Step 3: Cross multiply
    12,454,562.20x = 18,681,843.30 × 7,415,714.20
  4. Step 4: Simplify right side
    12,454,562.20x = 138,539,210,641,984.88
  5. Step 5: Solve for x
    x = 138,539,210,641,984.88/12,454,562.20
  6. Step 6: Final answer
    x = 11,123,571.30

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Double scale
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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.