Home / 18,145,405.20-27,218,107.80-8,067,709.20

Finding the Fourth Proportional to 18,145,405.20, 27,218,107.80 and 8,067,709.20

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Solution

The fourth proportional to 18,145,405.20, 27,218,107.80 and 8,067,709.20 is: 12,101,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,405.20 : 27,218,107.80 = 8,067,709.20 : x
  2. Step 2: Convert to fraction form
    18,145,405.20/27,218,107.80 = 8,067,709.20/x
  3. Step 3: Cross multiply
    18,145,405.20x = 27,218,107.80 × 8,067,709.20
  4. Step 4: Simplify right side
    18,145,405.20x = 219,587,778,704,651.78
  5. Step 5: Solve for x
    x = 219,587,778,704,651.78/18,145,405.20
  6. Step 6: Final answer
    x = 12,101,563.80

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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.