Home / 419,904,370.35-629,856,555.53-266,660,405.55

Finding the Fourth Proportional to 419,904,370.35, 629,856,555.53 and 266,660,405.55

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Solution

The fourth proportional to 419,904,370.35, 629,856,555.53 and 266,660,405.55 is: 399,990,608.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,370.35 : 629,856,555.53 = 266,660,405.55 : x
  2. Step 2: Convert to fraction form
    419,904,370.35/629,856,555.53 = 266,660,405.55/x
  3. Step 3: Cross multiply
    419,904,370.35x = 629,856,555.53 × 266,660,405.55
  4. Step 4: Simplify right side
    419,904,370.35x = 167,957,804,534,622,592
  5. Step 5: Solve for x
    x = 167,957,804,534,622,592/419,904,370.35
  6. Step 6: Final answer
    x = 399,990,608.33

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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.