Home / 10,214,213.20-15,321,319.80-8,387,630.80

Finding the Fourth Proportional to 10,214,213.20, 15,321,319.80 and 8,387,630.80

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Solution

The fourth proportional to 10,214,213.20, 15,321,319.80 and 8,387,630.80 is: 12,581,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214,213.20 : 15,321,319.80 = 8,387,630.80 : x
  2. Step 2: Convert to fraction form
    10,214,213.20/15,321,319.80 = 8,387,630.80/x
  3. Step 3: Cross multiply
    10,214,213.20x = 15,321,319.80 × 8,387,630.80
  4. Step 4: Simplify right side
    10,214,213.20x = 128,509,573,851,129.84
  5. Step 5: Solve for x
    x = 128,509,573,851,129.84/10,214,213.20
  6. Step 6: Final answer
    x = 12,581,446.20

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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.