Home / 12,287,997.20-18,431,995.80-5,556,630.80

Finding the Fourth Proportional to 12,287,997.20, 18,431,995.80 and 5,556,630.80

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Solution

The fourth proportional to 12,287,997.20, 18,431,995.80 and 5,556,630.80 is: 8,334,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287,997.20 : 18,431,995.80 = 5,556,630.80 : x
  2. Step 2: Convert to fraction form
    12,287,997.20/18,431,995.80 = 5,556,630.80/x
  3. Step 3: Cross multiply
    12,287,997.20x = 18,431,995.80 × 5,556,630.80
  4. Step 4: Simplify right side
    12,287,997.20x = 102,419,795,567,750.64
  5. Step 5: Solve for x
    x = 102,419,795,567,750.64/12,287,997.20
  6. Step 6: Final answer
    x = 8,334,946.20

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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.