Home / 7,245,078.96-9,998,262.92-3,981,949.20

Finding the Fourth Proportional to 7,245,078.96, 9,998,262.92 and 3,981,949.20

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Solution

The fourth proportional to 7,245,078.96, 9,998,262.92 and 3,981,949.20 is: 5,495,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245,078.96 : 9,998,262.92 = 3,981,949.20 : x
  2. Step 2: Convert to fraction form
    7,245,078.96/9,998,262.92 = 3,981,949.20/x
  3. Step 3: Cross multiply
    7,245,078.96x = 9,998,262.92 × 3,981,949.20
  4. Step 4: Simplify right side
    7,245,078.96x = 39,812,575,035,683.66
  5. Step 5: Solve for x
    x = 39,812,575,035,683.66/7,245,078.96
  6. Step 6: Final answer
    x = 5,495,119.55

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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.