Home / 121,162,738.80-167,217,743.52-74,751,799.44

Finding the Fourth Proportional to 121,162,738.80, 167,217,743.52 and 74,751,799.44

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Solution

The fourth proportional to 121,162,738.80, 167,217,743.52 and 74,751,799.44 is: 103,165,604.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,162,738.80 : 167,217,743.52 = 74,751,799.44 : x
  2. Step 2: Convert to fraction form
    121,162,738.80/167,217,743.52 = 74,751,799.44/x
  3. Step 3: Cross multiply
    121,162,738.80x = 167,217,743.52 × 74,751,799.44
  4. Step 4: Simplify right side
    121,162,738.80x = 12,499,827,226,416,400
  5. Step 5: Solve for x
    x = 12,499,827,226,416,400/121,162,738.80
  6. Step 6: Final answer
    x = 103,165,604.79

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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.