Home / 327,457,331.80-491,185,997.70-198,317,168.80

Finding the Fourth Proportional to 327,457,331.80, 491,185,997.70 and 198,317,168.80

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Solution

The fourth proportional to 327,457,331.80, 491,185,997.70 and 198,317,168.80 is: 297,475,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,457,331.80 : 491,185,997.70 = 198,317,168.80 : x
  2. Step 2: Convert to fraction form
    327,457,331.80/491,185,997.70 = 198,317,168.80/x
  3. Step 3: Cross multiply
    327,457,331.80x = 491,185,997.70 × 198,317,168.80
  4. Step 4: Simplify right side
    327,457,331.80x = 97,410,616,418,067,312
  5. Step 5: Solve for x
    x = 97,410,616,418,067,312/327,457,331.80
  6. Step 6: Final answer
    x = 297,475,753.20

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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.