Home / 8,320,564.80-12,480,847.20-7,375,780.80

Finding the Fourth Proportional to 8,320,564.80, 12,480,847.20 and 7,375,780.80

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Solution

The fourth proportional to 8,320,564.80, 12,480,847.20 and 7,375,780.80 is: 11,063,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,564.80 : 12,480,847.20 = 7,375,780.80 : x
  2. Step 2: Convert to fraction form
    8,320,564.80/12,480,847.20 = 7,375,780.80/x
  3. Step 3: Cross multiply
    8,320,564.80x = 12,480,847.20 × 7,375,780.80
  4. Step 4: Simplify right side
    8,320,564.80x = 92,055,993,145,493.75
  5. Step 5: Solve for x
    x = 92,055,993,145,493.75/8,320,564.80
  6. Step 6: Final answer
    x = 11,063,671.20

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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.