Home / 121,162,734.80-167,217,738-74,751,795.44

Finding the Fourth Proportional to 121,162,734.80, 167,217,738 and 74,751,795.44

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Solution

The fourth proportional to 121,162,734.80, 167,217,738 and 74,751,795.44 is: 103,165,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,162,734.80 : 167,217,738 = 74,751,795.44 : x
  2. Step 2: Convert to fraction form
    121,162,734.80/167,217,738 = 74,751,795.44/x
  3. Step 3: Cross multiply
    121,162,734.80x = 167,217,738 × 74,751,795.44
  4. Step 4: Simplify right side
    121,162,734.80x = 12,499,826,144,915,514
  5. Step 5: Solve for x
    x = 12,499,826,144,915,514/121,162,734.80
  6. Step 6: Final answer
    x = 103,165,599.27

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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.