Home / 198,489,028.80-297,733,543.20-143,644,317.60

Finding the Fourth Proportional to 198,489,028.80, 297,733,543.20 and 143,644,317.60

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Solution

The fourth proportional to 198,489,028.80, 297,733,543.20 and 143,644,317.60 is: 215,466,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,489,028.80 : 297,733,543.20 = 143,644,317.60 : x
  2. Step 2: Convert to fraction form
    198,489,028.80/297,733,543.20 = 143,644,317.60/x
  3. Step 3: Cross multiply
    198,489,028.80x = 297,733,543.20 × 143,644,317.60
  4. Step 4: Simplify right side
    198,489,028.80x = 42,767,731,639,594,120
  5. Step 5: Solve for x
    x = 42,767,731,639,594,120/198,489,028.80
  6. Step 6: Final answer
    x = 215,466,476.40

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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.