Home / 311,444,797.20-467,167,195.80-81,437,132.40

Finding the Fourth Proportional to 311,444,797.20, 467,167,195.80 and 81,437,132.40

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Solution

The fourth proportional to 311,444,797.20, 467,167,195.80 and 81,437,132.40 is: 122,155,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,444,797.20 : 467,167,195.80 = 81,437,132.40 : x
  2. Step 2: Convert to fraction form
    311,444,797.20/467,167,195.80 = 81,437,132.40/x
  3. Step 3: Cross multiply
    311,444,797.20x = 467,167,195.80 × 81,437,132.40
  4. Step 4: Simplify right side
    311,444,797.20x = 38,044,756,777,301,328
  5. Step 5: Solve for x
    x = 38,044,756,777,301,328/311,444,797.20
  6. Step 6: Final answer
    x = 122,155,698.60

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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.