Home / 419,904,858.40-629,857,287.60-204,914,010.40

Finding the Fourth Proportional to 419,904,858.40, 629,857,287.60 and 204,914,010.40

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Solution

The fourth proportional to 419,904,858.40, 629,857,287.60 and 204,914,010.40 is: 307,371,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,858.40 : 629,857,287.60 = 204,914,010.40 : x
  2. Step 2: Convert to fraction form
    419,904,858.40/629,857,287.60 = 204,914,010.40/x
  3. Step 3: Cross multiply
    419,904,858.40x = 629,857,287.60 × 204,914,010.40
  4. Step 4: Simplify right side
    419,904,858.40x = 129,066,582,781,782,192
  5. Step 5: Solve for x
    x = 129,066,582,781,782,192/419,904,858.40
  6. Step 6: Final answer
    x = 307,371,015.60

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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.