Home / 439,930,491.20-660,273,650.40-194,664,564.80

Finding the Fourth Proportional to 439,930,491.20, 660,273,650.40 and 194,664,564.80

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Solution

The fourth proportional to 439,930,491.20, 660,273,650.40 and 194,664,564.80 is: 292,164,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,930,491.20 : 660,273,650.40 = 194,664,564.80 : x
  2. Step 2: Convert to fraction form
    439,930,491.20/660,273,650.40 = 194,664,564.80/x
  3. Step 3: Cross multiply
    439,930,491.20x = 660,273,650.40 × 194,664,564.80
  4. Step 4: Simplify right side
    439,930,491.20x = 128,531,882,804,023,344
  5. Step 5: Solve for x
    x = 128,531,882,804,023,344/439,930,491.20
  6. Step 6: Final answer
    x = 292,164,069.95

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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.