Home / 12,188,821.97-16,820,209.78-6,682,008.62

Finding the Fourth Proportional to 12,188,821.97, 16,820,209.78 and 6,682,008.62

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Solution

The fourth proportional to 12,188,821.97, 16,820,209.78 and 6,682,008.62 is: 9,220,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,821.97 : 16,820,209.78 = 6,682,008.62 : x
  2. Step 2: Convert to fraction form
    12,188,821.97/16,820,209.78 = 6,682,008.62/x
  3. Step 3: Cross multiply
    12,188,821.97x = 16,820,209.78 × 6,682,008.62
  4. Step 4: Simplify right side
    12,188,821.97x = 112,392,786,765,513.80
  5. Step 5: Solve for x
    x = 112,392,786,765,513.80/12,188,821.97
  6. Step 6: Final answer
    x = 9,220,972.05

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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.