Home / 551,415,620.80-827,123,431.20-547,589,245.60

Finding the Fourth Proportional to 551,415,620.80, 827,123,431.20 and 547,589,245.60

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Solution

The fourth proportional to 551,415,620.80, 827,123,431.20 and 547,589,245.60 is: 821,383,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,415,620.80 : 827,123,431.20 = 547,589,245.60 : x
  2. Step 2: Convert to fraction form
    551,415,620.80/827,123,431.20 = 547,589,245.60/x
  3. Step 3: Cross multiply
    551,415,620.80x = 827,123,431.20 × 547,589,245.60
  4. Step 4: Simplify right side
    551,415,620.80x = 452,923,895,708,891,520
  5. Step 5: Solve for x
    x = 452,923,895,708,891,520/551,415,620.80
  6. Step 6: Final answer
    x = 821,383,868.40

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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.