Home / 10,204,967.70-15,286,456.35-5,159,121.30

Finding the Fourth Proportional to 10,204,967.70, 15,286,456.35 and 5,159,121.30

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Solution

The fourth proportional to 10,204,967.70, 15,286,456.35 and 5,159,121.30 is: 7,728,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204,967.70 : 15,286,456.35 = 5,159,121.30 : x
  2. Step 2: Convert to fraction form
    10,204,967.70/15,286,456.35 = 5,159,121.30/x
  3. Step 3: Cross multiply
    10,204,967.70x = 15,286,456.35 × 5,159,121.30
  4. Step 4: Simplify right side
    10,204,967.70x = 78,864,682,556,805.25
  5. Step 5: Solve for x
    x = 78,864,682,556,805.25/10,204,967.70
  6. Step 6: Final answer
    x = 7,728,067.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.