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Finding the Fourth Proportional to 419,904,914.40, 629,857,371.60 and 419,904,914.40

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Solution

The fourth proportional to 419,904,914.40, 629,857,371.60 and 419,904,914.40 is: 629,857,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,914.40 : 629,857,371.60 = 419,904,914.40 : x
  2. Step 2: Convert to fraction form
    419,904,914.40/629,857,371.60 = 419,904,914.40/x
  3. Step 3: Cross multiply
    419,904,914.40x = 629,857,371.60 × 419,904,914.40
  4. Step 4: Simplify right side
    419,904,914.40x = 264,480,205,705,906,976
  5. Step 5: Solve for x
    x = 264,480,205,705,906,976/419,904,914.40
  6. Step 6: Final answer
    x = 629,857,371.60

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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.