Home / 7,207,976.80-9,947,011.86-3,944,789.62

Finding the Fourth Proportional to 7,207,976.80, 9,947,011.86 and 3,944,789.62

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Solution

The fourth proportional to 7,207,976.80, 9,947,011.86 and 3,944,789.62 is: 5,443,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207,976.80 : 9,947,011.86 = 3,944,789.62 : x
  2. Step 2: Convert to fraction form
    7,207,976.80/9,947,011.86 = 3,944,789.62/x
  3. Step 3: Cross multiply
    7,207,976.80x = 9,947,011.86 × 3,944,789.62
  4. Step 4: Simplify right side
    7,207,976.80x = 39,238,869,135,344.89
  5. Step 5: Solve for x
    x = 39,238,869,135,344.89/7,207,976.80
  6. Step 6: Final answer
    x = 5,443,811.80

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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.