Home / 15,177,315.32-20,944,757.82-8,207,992.72

Finding the Fourth Proportional to 15,177,315.32, 20,944,757.82 and 8,207,992.72

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Solution

The fourth proportional to 15,177,315.32, 20,944,757.82 and 8,207,992.72 is: 11,327,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177,315.32 : 20,944,757.82 = 8,207,992.72 : x
  2. Step 2: Convert to fraction form
    15,177,315.32/20,944,757.82 = 8,207,992.72/x
  3. Step 3: Cross multiply
    15,177,315.32x = 20,944,757.82 × 8,207,992.72
  4. Step 4: Simplify right side
    15,177,315.32x = 171,914,419,696,433.16
  5. Step 5: Solve for x
    x = 171,914,419,696,433.16/15,177,315.32
  6. Step 6: Final answer
    x = 11,327,063.85

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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.