Home / 327,457,312.80-491,185,969.20-198,317,149.80

Finding the Fourth Proportional to 327,457,312.80, 491,185,969.20 and 198,317,149.80

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Solution

The fourth proportional to 327,457,312.80, 491,185,969.20 and 198,317,149.80 is: 297,475,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,457,312.80 : 491,185,969.20 = 198,317,149.80 : x
  2. Step 2: Convert to fraction form
    327,457,312.80/491,185,969.20 = 198,317,149.80/x
  3. Step 3: Cross multiply
    327,457,312.80x = 491,185,969.20 × 198,317,149.80
  4. Step 4: Simplify right side
    327,457,312.80x = 97,410,601,433,494,592
  5. Step 5: Solve for x
    x = 97,410,601,433,494,592/327,457,312.80
  6. Step 6: Final answer
    x = 297,475,724.70

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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.