Home / 7,182,831-9,912,517.44-3,919,856.42

Finding the Fourth Proportional to 7,182,831, 9,912,517.44 and 3,919,856.42

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Solution

The fourth proportional to 7,182,831, 9,912,517.44 and 3,919,856.42 is: 5,409,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,831 : 9,912,517.44 = 3,919,856.42 : x
  2. Step 2: Convert to fraction form
    7,182,831/9,912,517.44 = 3,919,856.42/x
  3. Step 3: Cross multiply
    7,182,831x = 9,912,517.44 × 3,919,856.42
  4. Step 4: Simplify right side
    7,182,831x = 38,855,645,125,545.96
  5. Step 5: Solve for x
    x = 38,855,645,125,545.96/7,182,831
  6. Step 6: Final answer
    x = 5,409,516.82

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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.