Home / 120,640,729.20-180,968,092.20-34,385,449.20

Finding the Fourth Proportional to 120,640,729.20, 180,968,092.20 and 34,385,449.20

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Solution

The fourth proportional to 120,640,729.20, 180,968,092.20 and 34,385,449.20 is: 51,580,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,640,729.20 : 180,968,092.20 = 34,385,449.20 : x
  2. Step 2: Convert to fraction form
    120,640,729.20/180,968,092.20 = 34,385,449.20/x
  3. Step 3: Cross multiply
    120,640,729.20x = 180,968,092.20 × 34,385,449.20
  4. Step 4: Simplify right side
    120,640,729.20x = 6,222,669,141,164,016
  5. Step 5: Solve for x
    x = 6,222,669,141,164,016/120,640,729.20
  6. Step 6: Final answer
    x = 51,580,168.51

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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.