Home / 15,187,808.48-20,959,231.25-8,218,486.10

Finding the Fourth Proportional to 15,187,808.48, 20,959,231.25 and 8,218,486.10

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Solution

The fourth proportional to 15,187,808.48, 20,959,231.25 and 8,218,486.10 is: 11,341,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187,808.48 : 20,959,231.25 = 8,218,486.10 : x
  2. Step 2: Convert to fraction form
    15,187,808.48/20,959,231.25 = 8,218,486.10/x
  3. Step 3: Cross multiply
    15,187,808.48x = 20,959,231.25 × 8,218,486.10
  4. Step 4: Simplify right side
    15,187,808.48x = 172,253,150,694,810.62
  5. Step 5: Solve for x
    x = 172,253,150,694,810.62/15,187,808.48
  6. Step 6: Final answer
    x = 11,341,540.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.