Home / 419,904,413.40-629,856,620.10-290,476,003.80

Finding the Fourth Proportional to 419,904,413.40, 629,856,620.10 and 290,476,003.80

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Solution

The fourth proportional to 419,904,413.40, 629,856,620.10 and 290,476,003.80 is: 435,714,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,413.40 : 629,856,620.10 = 290,476,003.80 : x
  2. Step 2: Convert to fraction form
    419,904,413.40/629,856,620.10 = 290,476,003.80/x
  3. Step 3: Cross multiply
    419,904,413.40x = 629,856,620.10 × 290,476,003.80
  4. Step 4: Simplify right side
    419,904,413.40x = 182,958,233,973,622,784
  5. Step 5: Solve for x
    x = 182,958,233,973,622,784/419,904,413.40
  6. Step 6: Final answer
    x = 435,714,005.70

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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.