Home / 20,276,882.78-27,981,028.20-11,574,709.34

Finding the Fourth Proportional to 20,276,882.78, 27,981,028.20 and 11,574,709.34

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Solution

The fourth proportional to 20,276,882.78, 27,981,028.20 and 11,574,709.34 is: 15,972,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276,882.78 : 27,981,028.20 = 11,574,709.34 : x
  2. Step 2: Convert to fraction form
    20,276,882.78/27,981,028.20 = 11,574,709.34/x
  3. Step 3: Cross multiply
    20,276,882.78x = 27,981,028.20 × 11,574,709.34
  4. Step 4: Simplify right side
    20,276,882.78x = 323,872,268,449,343.38
  5. Step 5: Solve for x
    x = 323,872,268,449,343.38/20,276,882.78
  6. Step 6: Final answer
    x = 15,972,488.08

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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.