Home / 20,157,478.62-27,819,682.11-11,456,959.11

Finding the Fourth Proportional to 20,157,478.62, 27,819,682.11 and 11,456,959.11

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Solution

The fourth proportional to 20,157,478.62, 27,819,682.11 and 11,456,959.11 is: 15,811,945.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,478.62 : 27,819,682.11 = 11,456,959.11 : x
  2. Step 2: Convert to fraction form
    20,157,478.62/27,819,682.11 = 11,456,959.11/x
  3. Step 3: Cross multiply
    20,157,478.62x = 27,819,682.11 × 11,456,959.11
  4. Step 4: Simplify right side
    20,157,478.62x = 318,728,960,387,468.50
  5. Step 5: Solve for x
    x = 318,728,960,387,468.50/20,157,478.62
  6. Step 6: Final answer
    x = 15,811,945.85

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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.