Home / 13,879,217.97-20,813,655.92-4,778,770.77

Finding the Fourth Proportional to 13,879,217.97, 20,813,655.92 and 4,778,770.77

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Solution

The fourth proportional to 13,879,217.97, 20,813,655.92 and 4,778,770.77 is: 7,166,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,217.97 : 20,813,655.92 = 4,778,770.77 : x
  2. Step 2: Convert to fraction form
    13,879,217.97/20,813,655.92 = 4,778,770.77/x
  3. Step 3: Cross multiply
    13,879,217.97x = 20,813,655.92 × 4,778,770.77
  4. Step 4: Simplify right side
    13,879,217.97x = 99,463,690,503,439.59
  5. Step 5: Solve for x
    x = 99,463,690,503,439.59/13,879,217.97
  6. Step 6: Final answer
    x = 7,166,375.71

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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.