Home / 12,189,022.56-16,820,486.76-6,682,209.12

Finding the Fourth Proportional to 12,189,022.56, 16,820,486.76 and 6,682,209.12

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Solution

The fourth proportional to 12,189,022.56, 16,820,486.76 and 6,682,209.12 is: 9,221,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189,022.56 : 16,820,486.76 = 6,682,209.12 : x
  2. Step 2: Convert to fraction form
    12,189,022.56/16,820,486.76 = 6,682,209.12/x
  3. Step 3: Cross multiply
    12,189,022.56x = 16,820,486.76 × 6,682,209.12
  4. Step 4: Simplify right side
    12,189,022.56x = 112,398,010,030,511.27
  5. Step 5: Solve for x
    x = 112,398,010,030,511.27/12,189,022.56
  6. Step 6: Final answer
    x = 9,221,248.83

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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.