Home / 8,309,109.20-12,463,663.80-3,515,205.20

Finding the Fourth Proportional to 8,309,109.20, 12,463,663.80 and 3,515,205.20

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Solution

The fourth proportional to 8,309,109.20, 12,463,663.80 and 3,515,205.20 is: 5,272,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,109.20 : 12,463,663.80 = 3,515,205.20 : x
  2. Step 2: Convert to fraction form
    8,309,109.20/12,463,663.80 = 3,515,205.20/x
  3. Step 3: Cross multiply
    8,309,109.20x = 12,463,663.80 × 3,515,205.20
  4. Step 4: Simplify right side
    8,309,109.20x = 43,812,335,800,811.77
  5. Step 5: Solve for x
    x = 43,812,335,800,811.77/8,309,109.20
  6. Step 6: Final answer
    x = 5,272,807.80

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Similar ratio
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1.5x scale

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.