Home / 12,479,435.31-17,221,734.68-7,322,882.79

Finding the Fourth Proportional to 12,479,435.31, 17,221,734.68 and 7,322,882.79

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Solution

The fourth proportional to 12,479,435.31, 17,221,734.68 and 7,322,882.79 is: 10,105,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,435.31 : 17,221,734.68 = 7,322,882.79 : x
  2. Step 2: Convert to fraction form
    12,479,435.31/17,221,734.68 = 7,322,882.79/x
  3. Step 3: Cross multiply
    12,479,435.31x = 17,221,734.68 × 7,322,882.79
  4. Step 4: Simplify right side
    12,479,435.31x = 126,112,744,465,503.75
  5. Step 5: Solve for x
    x = 126,112,744,465,503.75/12,479,435.31
  6. Step 6: Final answer
    x = 10,105,645.11

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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.