Home / 7,922,337.60-11,887,920.63-4,278,993.78

Finding the Fourth Proportional to 7,922,337.60, 11,887,920.63 and 4,278,993.78

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Solution

The fourth proportional to 7,922,337.60, 11,887,920.63 and 4,278,993.78 is: 6,420,874.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922,337.60 : 11,887,920.63 = 4,278,993.78 : x
  2. Step 2: Convert to fraction form
    7,922,337.60/11,887,920.63 = 4,278,993.78/x
  3. Step 3: Cross multiply
    7,922,337.60x = 11,887,920.63 × 4,278,993.78
  4. Step 4: Simplify right side
    7,922,337.60x = 50,868,338,432,903.69
  5. Step 5: Solve for x
    x = 50,868,338,432,903.69/7,922,337.60
  6. Step 6: Final answer
    x = 6,420,874.87

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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.