Home / 212,485,299,716.04-318,783,853,131.85-76,361,176,175.64

Finding the Fourth Proportional to 212,485,299,716.04, 318,783,853,131.85 and 76,361,176,175.64

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Solution

The fourth proportional to 212,485,299,716.04, 318,783,853,131.85 and 76,361,176,175.64 is: 114,561,854,412.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,485,299,716.04 : 318,783,853,131.85 = 76,361,176,175.64 : x
  2. Step 2: Convert to fraction form
    212,485,299,716.04/318,783,853,131.85 = 76,361,176,175.64/x
  3. Step 3: Cross multiply
    212,485,299,716.04x = 318,783,853,131.85 × 76,361,176,175.64
  4. Step 4: Simplify right side
    212,485,299,716.04x = 24,342,709,970,948,948,230,144
  5. Step 5: Solve for x
    x = 24,342,709,970,948,948,230,144/212,485,299,716.04
  6. Step 6: Final answer
    x = 114,561,854,412.89

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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.