Home / 12,387,525.40-18,581,288.10-8,082,853.30

Finding the Fourth Proportional to 12,387,525.40, 18,581,288.10 and 8,082,853.30

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Solution

The fourth proportional to 12,387,525.40, 18,581,288.10 and 8,082,853.30 is: 12,124,279.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,525.40 : 18,581,288.10 = 8,082,853.30 : x
  2. Step 2: Convert to fraction form
    12,387,525.40/18,581,288.10 = 8,082,853.30/x
  3. Step 3: Cross multiply
    12,387,525.40x = 18,581,288.10 × 8,082,853.30
  4. Step 4: Simplify right side
    12,387,525.40x = 150,189,825,837,335.75
  5. Step 5: Solve for x
    x = 150,189,825,837,335.75/12,387,525.40
  6. Step 6: Final answer
    x = 12,124,279.95

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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.