Home / 521,568,008.20-782,352,012.30-262,683,195.40

Finding the Fourth Proportional to 521,568,008.20, 782,352,012.30 and 262,683,195.40

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Solution

The fourth proportional to 521,568,008.20, 782,352,012.30 and 262,683,195.40 is: 394,024,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,568,008.20 : 782,352,012.30 = 262,683,195.40 : x
  2. Step 2: Convert to fraction form
    521,568,008.20/782,352,012.30 = 262,683,195.40/x
  3. Step 3: Cross multiply
    521,568,008.20x = 782,352,012.30 × 262,683,195.40
  4. Step 4: Simplify right side
    521,568,008.20x = 205,510,726,518,584,096
  5. Step 5: Solve for x
    x = 205,510,726,518,584,096/521,568,008.20
  6. Step 6: Final answer
    x = 394,024,793.10

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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.