Home / 8,275,855.20-12,385,789.20-7,268,085.60

Finding the Fourth Proportional to 8,275,855.20, 12,385,789.20 and 7,268,085.60

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Solution

The fourth proportional to 8,275,855.20, 12,385,789.20 and 7,268,085.60 is: 10,877,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275,855.20 : 12,385,789.20 = 7,268,085.60 : x
  2. Step 2: Convert to fraction form
    8,275,855.20/12,385,789.20 = 7,268,085.60/x
  3. Step 3: Cross multiply
    8,275,855.20x = 12,385,789.20 × 7,268,085.60
  4. Step 4: Simplify right side
    8,275,855.20x = 90,020,976,129,155.52
  5. Step 5: Solve for x
    x = 90,020,976,129,155.52/8,275,855.20
  6. Step 6: Final answer
    x = 10,877,543.64

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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.