Home / 198,153,028.80-297,229,543.20-68,747,145.30

Finding the Fourth Proportional to 198,153,028.80, 297,229,543.20 and 68,747,145.30

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Solution

The fourth proportional to 198,153,028.80, 297,229,543.20 and 68,747,145.30 is: 103,120,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,153,028.80 : 297,229,543.20 = 68,747,145.30 : x
  2. Step 2: Convert to fraction form
    198,153,028.80/297,229,543.20 = 68,747,145.30/x
  3. Step 3: Cross multiply
    198,153,028.80x = 297,229,543.20 × 68,747,145.30
  4. Step 4: Simplify right side
    198,153,028.80x = 20,433,682,593,823,024
  5. Step 5: Solve for x
    x = 20,433,682,593,823,024/198,153,028.80
  6. Step 6: Final answer
    x = 103,120,717.95

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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.