Home / 81,158,564.18-111,986,860.82-49,352,508.02

Finding the Fourth Proportional to 81,158,564.18, 111,986,860.82 and 49,352,508.02

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Solution

The fourth proportional to 81,158,564.18, 111,986,860.82 and 49,352,508.02 is: 68,099,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158,564.18 : 111,986,860.82 = 49,352,508.02 : x
  2. Step 2: Convert to fraction form
    81,158,564.18/111,986,860.82 = 49,352,508.02/x
  3. Step 3: Cross multiply
    81,158,564.18x = 111,986,860.82 × 49,352,508.02
  4. Step 4: Simplify right side
    81,158,564.18x = 5,526,832,446,753,674
  5. Step 5: Solve for x
    x = 5,526,832,446,753,674/81,158,564.18
  6. Step 6: Final answer
    x = 68,099,189.56

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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.