Home / 12,167,067.68-16,790,047.02-6,660,305.78

Finding the Fourth Proportional to 12,167,067.68, 16,790,047.02 and 6,660,305.78

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Solution

The fourth proportional to 12,167,067.68, 16,790,047.02 and 6,660,305.78 is: 9,190,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167,067.68 : 16,790,047.02 = 6,660,305.78 : x
  2. Step 2: Convert to fraction form
    12,167,067.68/16,790,047.02 = 6,660,305.78/x
  3. Step 3: Cross multiply
    12,167,067.68x = 16,790,047.02 × 6,660,305.78
  4. Step 4: Simplify right side
    12,167,067.68x = 111,826,847,213,777.78
  5. Step 5: Solve for x
    x = 111,826,847,213,777.78/12,167,067.68
  6. Step 6: Final answer
    x = 9,190,944.78

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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.