Home / 439,543,491.20-659,409,715.20-132,866,604.80

Finding the Fourth Proportional to 439,543,491.20, 659,409,715.20 and 132,866,604.80

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Solution

The fourth proportional to 439,543,491.20, 659,409,715.20 and 132,866,604.80 is: 199,328,466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,543,491.20 : 659,409,715.20 = 132,866,604.80 : x
  2. Step 2: Convert to fraction form
    439,543,491.20/659,409,715.20 = 132,866,604.80/x
  3. Step 3: Cross multiply
    439,543,491.20x = 659,409,715.20 × 132,866,604.80
  4. Step 4: Simplify right side
    439,543,491.20x = 87,613,530,030,758,960
  5. Step 5: Solve for x
    x = 87,613,530,030,758,960/439,543,491.20
  6. Step 6: Final answer
    x = 199,328,466.43

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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.