Home / 15,428,293.43-21,290,231.20-8,811,581.08

Finding the Fourth Proportional to 15,428,293.43, 21,290,231.20 and 8,811,581.08

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Solution

The fourth proportional to 15,428,293.43, 21,290,231.20 and 8,811,581.08 is: 12,159,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428,293.43 : 21,290,231.20 = 8,811,581.08 : x
  2. Step 2: Convert to fraction form
    15,428,293.43/21,290,231.20 = 8,811,581.08/x
  3. Step 3: Cross multiply
    15,428,293.43x = 21,290,231.20 × 8,811,581.08
  4. Step 4: Simplify right side
    15,428,293.43x = 187,600,598,280,236.62
  5. Step 5: Solve for x
    x = 187,600,598,280,236.62/15,428,293.43
  6. Step 6: Final answer
    x = 12,159,517.13

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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.