Home / 12,189,517.80-16,821,441.36-6,682,826.76

Finding the Fourth Proportional to 12,189,517.80, 16,821,441.36 and 6,682,826.76

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Solution

The fourth proportional to 12,189,517.80, 16,821,441.36 and 6,682,826.76 is: 9,222,249.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189,517.80 : 16,821,441.36 = 6,682,826.76 : x
  2. Step 2: Convert to fraction form
    12,189,517.80/16,821,441.36 = 6,682,826.76/x
  3. Step 3: Cross multiply
    12,189,517.80x = 16,821,441.36 × 6,682,826.76
  4. Step 4: Simplify right side
    12,189,517.80x = 112,414,778,462,378.78
  5. Step 5: Solve for x
    x = 112,414,778,462,378.78/12,189,517.80
  6. Step 6: Final answer
    x = 9,222,249.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.