Home / 8,259,026.20-12,378,041.70-3,990,002.20

Finding the Fourth Proportional to 8,259,026.20, 12,378,041.70 and 3,990,002.20

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Solution

The fourth proportional to 8,259,026.20, 12,378,041.70 and 3,990,002.20 is: 5,979,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259,026.20 : 12,378,041.70 = 3,990,002.20 : x
  2. Step 2: Convert to fraction form
    8,259,026.20/12,378,041.70 = 3,990,002.20/x
  3. Step 3: Cross multiply
    8,259,026.20x = 12,378,041.70 × 3,990,002.20
  4. Step 4: Simplify right side
    8,259,026.20x = 49,388,413,614,691.74
  5. Step 5: Solve for x
    x = 49,388,413,614,691.74/8,259,026.20
  6. Step 6: Final answer
    x = 5,979,931.82

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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.