Home / 11,681,187.20-17,521,780.80-8,279,964.80

Finding the Fourth Proportional to 11,681,187.20, 17,521,780.80 and 8,279,964.80

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Solution

The fourth proportional to 11,681,187.20, 17,521,780.80 and 8,279,964.80 is: 12,419,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681,187.20 : 17,521,780.80 = 8,279,964.80 : x
  2. Step 2: Convert to fraction form
    11,681,187.20/17,521,780.80 = 8,279,964.80/x
  3. Step 3: Cross multiply
    11,681,187.20x = 17,521,780.80 × 8,279,964.80
  4. Step 4: Simplify right side
    11,681,187.20x = 145,079,728,257,315.84
  5. Step 5: Solve for x
    x = 145,079,728,257,315.84/11,681,187.20
  6. Step 6: Final answer
    x = 12,419,947.20

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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.