Home / 257,096,510.80-385,644,766.20-220,108,217.20

Finding the Fourth Proportional to 257,096,510.80, 385,644,766.20 and 220,108,217.20

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Solution

The fourth proportional to 257,096,510.80, 385,644,766.20 and 220,108,217.20 is: 330,162,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,096,510.80 : 385,644,766.20 = 220,108,217.20 : x
  2. Step 2: Convert to fraction form
    257,096,510.80/385,644,766.20 = 220,108,217.20/x
  3. Step 3: Cross multiply
    257,096,510.80x = 385,644,766.20 × 220,108,217.20
  4. Step 4: Simplify right side
    257,096,510.80x = 84,883,581,960,792,816
  5. Step 5: Solve for x
    x = 84,883,581,960,792,816/257,096,510.80
  6. Step 6: Final answer
    x = 330,162,325.80

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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.