Home / 419,904,480.60-629,856,720.90-288,957,418.20

Finding the Fourth Proportional to 419,904,480.60, 629,856,720.90 and 288,957,418.20

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Solution

The fourth proportional to 419,904,480.60, 629,856,720.90 and 288,957,418.20 is: 433,436,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,480.60 : 629,856,720.90 = 288,957,418.20 : x
  2. Step 2: Convert to fraction form
    419,904,480.60/629,856,720.90 = 288,957,418.20/x
  3. Step 3: Cross multiply
    419,904,480.60x = 629,856,720.90 × 288,957,418.20
  4. Step 4: Simplify right side
    419,904,480.60x = 182,001,771,907,181,952
  5. Step 5: Solve for x
    x = 182,001,771,907,181,952/419,904,480.60
  6. Step 6: Final answer
    x = 433,436,127.30

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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.