Home / 12,454,624.20-18,681,936.30-7,415,776.20

Finding the Fourth Proportional to 12,454,624.20, 18,681,936.30 and 7,415,776.20

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Solution

The fourth proportional to 12,454,624.20, 18,681,936.30 and 7,415,776.20 is: 11,123,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454,624.20 : 18,681,936.30 = 7,415,776.20 : x
  2. Step 2: Convert to fraction form
    12,454,624.20/18,681,936.30 = 7,415,776.20/x
  3. Step 3: Cross multiply
    12,454,624.20x = 18,681,936.30 × 7,415,776.20
  4. Step 4: Simplify right side
    12,454,624.20x = 138,541,058,583,456.06
  5. Step 5: Solve for x
    x = 138,541,058,583,456.06/12,454,624.20
  6. Step 6: Final answer
    x = 11,123,664.30

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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.