Home / 327,807,005.70-491,699,136.15-82,165,790.10

Finding the Fourth Proportional to 327,807,005.70, 491,699,136.15 and 82,165,790.10

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Solution

The fourth proportional to 327,807,005.70, 491,699,136.15 and 82,165,790.10 is: 123,245,834.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,807,005.70 : 491,699,136.15 = 82,165,790.10 : x
  2. Step 2: Convert to fraction form
    327,807,005.70/491,699,136.15 = 82,165,790.10/x
  3. Step 3: Cross multiply
    327,807,005.70x = 491,699,136.15 × 82,165,790.10
  4. Step 4: Simplify right side
    327,807,005.70x = 40,400,848,013,252,216
  5. Step 5: Solve for x
    x = 40,400,848,013,252,216/327,807,005.70
  6. Step 6: Final answer
    x = 123,245,834.62

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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.