Home / 231,820,131.20-347,730,196.80-207,633,660.80

Finding the Fourth Proportional to 231,820,131.20, 347,730,196.80 and 207,633,660.80

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Solution

The fourth proportional to 231,820,131.20, 347,730,196.80 and 207,633,660.80 is: 311,450,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,820,131.20 : 347,730,196.80 = 207,633,660.80 : x
  2. Step 2: Convert to fraction form
    231,820,131.20/347,730,196.80 = 207,633,660.80/x
  3. Step 3: Cross multiply
    231,820,131.20x = 347,730,196.80 × 207,633,660.80
  4. Step 4: Simplify right side
    231,820,131.20x = 72,200,493,732,288,448
  5. Step 5: Solve for x
    x = 72,200,493,732,288,448/231,820,131.20
  6. Step 6: Final answer
    x = 311,450,491.20

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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.