Home / 12,484,809.20-18,722,548.20-8,687,010.80

Finding the Fourth Proportional to 12,484,809.20, 18,722,548.20 and 8,687,010.80

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Solution

The fourth proportional to 12,484,809.20, 18,722,548.20 and 8,687,010.80 is: 13,027,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484,809.20 : 18,722,548.20 = 8,687,010.80 : x
  2. Step 2: Convert to fraction form
    12,484,809.20/18,722,548.20 = 8,687,010.80/x
  3. Step 3: Cross multiply
    12,484,809.20x = 18,722,548.20 × 8,687,010.80
  4. Step 4: Simplify right side
    12,484,809.20x = 162,642,978,416,920.56
  5. Step 5: Solve for x
    x = 162,642,978,416,920.56/12,484,809.20
  6. Step 6: Final answer
    x = 13,027,269.85

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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.