Home / 481,002,912.70-721,504,369.05-412,128,159.10

Finding the Fourth Proportional to 481,002,912.70, 721,504,369.05 and 412,128,159.10

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Solution

The fourth proportional to 481,002,912.70, 721,504,369.05 and 412,128,159.10 is: 618,192,238.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,002,912.70 : 721,504,369.05 = 412,128,159.10 : x
  2. Step 2: Convert to fraction form
    481,002,912.70/721,504,369.05 = 412,128,159.10/x
  3. Step 3: Cross multiply
    481,002,912.70x = 721,504,369.05 × 412,128,159.10
  4. Step 4: Simplify right side
    481,002,912.70x = 297,352,267,399,183,488
  5. Step 5: Solve for x
    x = 297,352,267,399,183,488/481,002,912.70
  6. Step 6: Final answer
    x = 618,192,238.65

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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.