Home / 15,517,487.20-21,416,738.16-8,995,196.56

Finding the Fourth Proportional to 15,517,487.20, 21,416,738.16 and 8,995,196.56

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Solution

The fourth proportional to 15,517,487.20, 21,416,738.16 and 8,995,196.56 is: 12,414,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517,487.20 : 21,416,738.16 = 8,995,196.56 : x
  2. Step 2: Convert to fraction form
    15,517,487.20/21,416,738.16 = 8,995,196.56/x
  3. Step 3: Cross multiply
    15,517,487.20x = 21,416,738.16 × 8,995,196.56
  4. Step 4: Simplify right side
    15,517,487.20x = 192,647,769,423,252.75
  5. Step 5: Solve for x
    x = 192,647,769,423,252.75/15,517,487.20
  6. Step 6: Final answer
    x = 12,414,881.80

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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.