Home / 10,505,724.20-15,743,824.05-8,350,435.70

Finding the Fourth Proportional to 10,505,724.20, 15,743,824.05 and 8,350,435.70

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Solution

The fourth proportional to 10,505,724.20, 15,743,824.05 and 8,350,435.70 is: 12,513,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505,724.20 : 15,743,824.05 = 8,350,435.70 : x
  2. Step 2: Convert to fraction form
    10,505,724.20/15,743,824.05 = 8,350,435.70/x
  3. Step 3: Cross multiply
    10,505,724.20x = 15,743,824.05 × 8,350,435.70
  4. Step 4: Simplify right side
    10,505,724.20x = 131,467,790,401,638.59
  5. Step 5: Solve for x
    x = 131,467,790,401,638.59/10,505,724.20
  6. Step 6: Final answer
    x = 12,513,919.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.