Home / 20,198,538.45-27,874,670.90-11,945,675.25

Finding the Fourth Proportional to 20,198,538.45, 27,874,670.90 and 11,945,675.25

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Solution

The fourth proportional to 20,198,538.45, 27,874,670.90 and 11,945,675.25 is: 16,485,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198,538.45 : 27,874,670.90 = 11,945,675.25 : x
  2. Step 2: Convert to fraction form
    20,198,538.45/27,874,670.90 = 11,945,675.25/x
  3. Step 3: Cross multiply
    20,198,538.45x = 27,874,670.90 × 11,945,675.25
  4. Step 4: Simplify right side
    20,198,538.45x = 332,981,766,272,025.19
  5. Step 5: Solve for x
    x = 332,981,766,272,025.19/20,198,538.45
  6. Step 6: Final answer
    x = 16,485,438.64

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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.