Home / 120,629,902.50-166,464,019.26-66,981,223.26

Finding the Fourth Proportional to 120,629,902.50, 166,464,019.26 and 66,981,223.26

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Solution

The fourth proportional to 120,629,902.50, 166,464,019.26 and 66,981,223.26 is: 92,431,175.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,629,902.50 : 166,464,019.26 = 66,981,223.26 : x
  2. Step 2: Convert to fraction form
    120,629,902.50/166,464,019.26 = 66,981,223.26/x
  3. Step 3: Cross multiply
    120,629,902.50x = 166,464,019.26 × 66,981,223.26
  4. Step 4: Simplify right side
    120,629,902.50x = 11,149,963,638,811,000
  5. Step 5: Solve for x
    x = 11,149,963,638,811,000/120,629,902.50
  6. Step 6: Final answer
    x = 92,431,175.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.