Home / 67,128,842.76-100,747,072.68-34,789,990.92

Finding the Fourth Proportional to 67,128,842.76, 100,747,072.68 and 34,789,990.92

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Solution

The fourth proportional to 67,128,842.76, 100,747,072.68 and 34,789,990.92 is: 52,212,873.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,128,842.76 : 100,747,072.68 = 34,789,990.92 : x
  2. Step 2: Convert to fraction form
    67,128,842.76/100,747,072.68 = 34,789,990.92/x
  3. Step 3: Cross multiply
    67,128,842.76x = 100,747,072.68 × 34,789,990.92
  4. Step 4: Simplify right side
    67,128,842.76x = 3,504,989,743,753,780.50
  5. Step 5: Solve for x
    x = 3,504,989,743,753,780.50/67,128,842.76
  6. Step 6: Final answer
    x = 52,212,873.03

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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.