Home / 10,505,721.20-15,743,819.55-8,350,432.70

Finding the Fourth Proportional to 10,505,721.20, 15,743,819.55 and 8,350,432.70

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Solution

The fourth proportional to 10,505,721.20, 15,743,819.55 and 8,350,432.70 is: 12,513,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505,721.20 : 15,743,819.55 = 8,350,432.70 : x
  2. Step 2: Convert to fraction form
    10,505,721.20/15,743,819.55 = 8,350,432.70/x
  3. Step 3: Cross multiply
    10,505,721.20x = 15,743,819.55 × 8,350,432.70
  4. Step 4: Simplify right side
    10,505,721.20x = 131,467,705,593,219.30
  5. Step 5: Solve for x
    x = 131,467,705,593,219.30/10,505,721.20
  6. Step 6: Final answer
    x = 12,513,915.33

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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.