Home / 20,198,917.89-27,874,685.52-11,497,650.84

Finding the Fourth Proportional to 20,198,917.89, 27,874,685.52 and 11,497,650.84

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Solution

The fourth proportional to 20,198,917.89, 27,874,685.52 and 11,497,650.84 is: 15,866,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198,917.89 : 27,874,685.52 = 11,497,650.84 : x
  2. Step 2: Convert to fraction form
    20,198,917.89/27,874,685.52 = 11,497,650.84/x
  3. Step 3: Cross multiply
    20,198,917.89x = 27,874,685.52 × 11,497,650.84
  4. Step 4: Simplify right side
    20,198,917.89x = 320,493,401,383,763.81
  5. Step 5: Solve for x
    x = 320,493,401,383,763.81/20,198,917.89
  6. Step 6: Final answer
    x = 15,866,859.95

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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.