Home / 15,195,365.42-20,969,610.76-8,226,042.78

Finding the Fourth Proportional to 15,195,365.42, 20,969,610.76 and 8,226,042.78

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Solution

The fourth proportional to 15,195,365.42, 20,969,610.76 and 8,226,042.78 is: 11,351,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195,365.42 : 20,969,610.76 = 8,226,042.78 : x
  2. Step 2: Convert to fraction form
    15,195,365.42/20,969,610.76 = 8,226,042.78/x
  3. Step 3: Cross multiply
    15,195,365.42x = 20,969,610.76 × 8,226,042.78
  4. Step 4: Simplify right side
    15,195,365.42x = 172,496,915,150,578.09
  5. Step 5: Solve for x
    x = 172,496,915,150,578.09/15,195,365.42
  6. Step 6: Final answer
    x = 11,351,942.54

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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.