Home / 419,489,159.25-629,051,027.83-120,291,975.85

Finding the Fourth Proportional to 419,489,159.25, 629,051,027.83 and 120,291,975.85

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Solution

The fourth proportional to 419,489,159.25, 629,051,027.83 and 120,291,975.85 is: 180,385,569.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,489,159.25 : 629,051,027.83 = 120,291,975.85 : x
  2. Step 2: Convert to fraction form
    419,489,159.25/629,051,027.83 = 120,291,975.85/x
  3. Step 3: Cross multiply
    419,489,159.25x = 629,051,027.83 × 120,291,975.85
  4. Step 4: Simplify right side
    419,489,159.25x = 75,669,791,046,523,824
  5. Step 5: Solve for x
    x = 75,669,791,046,523,824/419,489,159.25
  6. Step 6: Final answer
    x = 180,385,569.87

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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.