Home / 12,481,844.40-18,708,769.80-6,414,231.60

Finding the Fourth Proportional to 12,481,844.40, 18,708,769.80 and 6,414,231.60

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Solution

The fourth proportional to 12,481,844.40, 18,708,769.80 and 6,414,231.60 is: 9,614,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,844.40 : 18,708,769.80 = 6,414,231.60 : x
  2. Step 2: Convert to fraction form
    12,481,844.40/18,708,769.80 = 6,414,231.60/x
  3. Step 3: Cross multiply
    12,481,844.40x = 18,708,769.80 × 6,414,231.60
  4. Step 4: Simplify right side
    12,481,844.40x = 120,002,382,448,285.67
  5. Step 5: Solve for x
    x = 120,002,382,448,285.67/12,481,844.40
  6. Step 6: Final answer
    x = 9,614,154.66

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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.