Home / 419,904,999.40-629,857,499.10-404,599,498.60

Finding the Fourth Proportional to 419,904,999.40, 629,857,499.10 and 404,599,498.60

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Solution

The fourth proportional to 419,904,999.40, 629,857,499.10 and 404,599,498.60 is: 606,899,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,999.40 : 629,857,499.10 = 404,599,498.60 : x
  2. Step 2: Convert to fraction form
    419,904,999.40/629,857,499.10 = 404,599,498.60/x
  3. Step 3: Cross multiply
    419,904,999.40x = 629,857,499.10 × 404,599,498.60
  4. Step 4: Simplify right side
    419,904,999.40x = 254,840,028,325,309,984
  5. Step 5: Solve for x
    x = 254,840,028,325,309,984/419,904,999.40
  6. Step 6: Final answer
    x = 606,899,247.90

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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.