Home / 465,197,747.20-697,040,793.60-388,103,372.80

Finding the Fourth Proportional to 465,197,747.20, 697,040,793.60 and 388,103,372.80

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Solution

The fourth proportional to 465,197,747.20, 697,040,793.60 and 388,103,372.80 is: 581,524,490.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,197,747.20 : 697,040,793.60 = 388,103,372.80 : x
  2. Step 2: Convert to fraction form
    465,197,747.20/697,040,793.60 = 388,103,372.80/x
  3. Step 3: Cross multiply
    465,197,747.20x = 697,040,793.60 × 388,103,372.80
  4. Step 4: Simplify right side
    465,197,747.20x = 270,523,882,975,348,672
  5. Step 5: Solve for x
    x = 270,523,882,975,348,672/465,197,747.20
  6. Step 6: Final answer
    x = 581,524,490.61

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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.