Home / 419,904,509.40-629,856,764.10-404,599,008.60

Finding the Fourth Proportional to 419,904,509.40, 629,856,764.10 and 404,599,008.60

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Solution

The fourth proportional to 419,904,509.40, 629,856,764.10 and 404,599,008.60 is: 606,898,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,509.40 : 629,856,764.10 = 404,599,008.60 : x
  2. Step 2: Convert to fraction form
    419,904,509.40/629,856,764.10 = 404,599,008.60/x
  3. Step 3: Cross multiply
    419,904,509.40x = 629,856,764.10 × 404,599,008.60
  4. Step 4: Simplify right side
    419,904,509.40x = 254,839,422,314,864,096
  5. Step 5: Solve for x
    x = 254,839,422,314,864,096/419,904,509.40
  6. Step 6: Final answer
    x = 606,898,512.90

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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.