Home / 419,904,999.90-629,857,499.85-204,914,151.90

Finding the Fourth Proportional to 419,904,999.90, 629,857,499.85 and 204,914,151.90

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Solution

The fourth proportional to 419,904,999.90, 629,857,499.85 and 204,914,151.90 is: 307,371,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,999.90 : 629,857,499.85 = 204,914,151.90 : x
  2. Step 2: Convert to fraction form
    419,904,999.90/629,857,499.85 = 204,914,151.90/x
  3. Step 3: Cross multiply
    419,904,999.90x = 629,857,499.85 × 204,914,151.90
  4. Step 4: Simplify right side
    419,904,999.90x = 129,066,715,399,617,136
  5. Step 5: Solve for x
    x = 129,066,715,399,617,136/419,904,999.90
  6. Step 6: Final answer
    x = 307,371,227.85

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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.