Home / 8,690,766.80-11,950,718.28-7,542,847.76

Finding the Fourth Proportional to 8,690,766.80, 11,950,718.28 and 7,542,847.76

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Solution

The fourth proportional to 8,690,766.80, 11,950,718.28 and 7,542,847.76 is: 10,372,208.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,766.80 : 11,950,718.28 = 7,542,847.76 : x
  2. Step 2: Convert to fraction form
    8,690,766.80/11,950,718.28 = 7,542,847.76/x
  3. Step 3: Cross multiply
    8,690,766.80x = 11,950,718.28 × 7,542,847.76
  4. Step 4: Simplify right side
    8,690,766.80x = 90,142,448,608,689.05
  5. Step 5: Solve for x
    x = 90,142,448,608,689.05/8,690,766.80
  6. Step 6: Final answer
    x = 10,372,208.88

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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.