Home / 198,611,645.38-274,122,017.57-131,512,254.21

Finding the Fourth Proportional to 198,611,645.38, 274,122,017.57 and 131,512,254.21

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Solution

The fourth proportional to 198,611,645.38, 274,122,017.57 and 131,512,254.21 is: 181,512,037.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,611,645.38 : 274,122,017.57 = 131,512,254.21 : x
  2. Step 2: Convert to fraction form
    198,611,645.38/274,122,017.57 = 131,512,254.21/x
  3. Step 3: Cross multiply
    198,611,645.38x = 274,122,017.57 × 131,512,254.21
  4. Step 4: Simplify right side
    198,611,645.38x = 36,050,404,459,552,704
  5. Step 5: Solve for x
    x = 36,050,404,459,552,704/198,611,645.38
  6. Step 6: Final answer
    x = 181,512,037.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.