Home / 136,793,942.92-188,771,984.50-78,055,540.84

Finding the Fourth Proportional to 136,793,942.92, 188,771,984.50 and 78,055,540.84

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Solution

The fourth proportional to 136,793,942.92, 188,771,984.50 and 78,055,540.84 is: 107,714,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,793,942.92 : 188,771,984.50 = 78,055,540.84 : x
  2. Step 2: Convert to fraction form
    136,793,942.92/188,771,984.50 = 78,055,540.84/x
  3. Step 3: Cross multiply
    136,793,942.92x = 188,771,984.50 × 78,055,540.84
  4. Step 4: Simplify right side
    136,793,942.92x = 14,734,699,345,587,598
  5. Step 5: Solve for x
    x = 14,734,699,345,587,598/136,793,942.92
  6. Step 6: Final answer
    x = 107,714,559.80

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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.