Home / 8,259,034.20-12,378,053.70-3,990,010.20

Finding the Fourth Proportional to 8,259,034.20, 12,378,053.70 and 3,990,010.20

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Solution

The fourth proportional to 8,259,034.20, 12,378,053.70 and 3,990,010.20 is: 5,979,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259,034.20 : 12,378,053.70 = 3,990,010.20 : x
  2. Step 2: Convert to fraction form
    8,259,034.20/12,378,053.70 = 3,990,010.20/x
  3. Step 3: Cross multiply
    8,259,034.20x = 12,378,053.70 × 3,990,010.20
  4. Step 4: Simplify right side
    8,259,034.20x = 49,388,560,519,147.74
  5. Step 5: Solve for x
    x = 49,388,560,519,147.74/8,259,034.20
  6. Step 6: Final answer
    x = 5,979,943.82

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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.