Home / 7,981,804.80-11,972,707.20-3,190,233.60

Finding the Fourth Proportional to 7,981,804.80, 11,972,707.20 and 3,190,233.60

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Solution

The fourth proportional to 7,981,804.80, 11,972,707.20 and 3,190,233.60 is: 4,785,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,804.80 : 11,972,707.20 = 3,190,233.60 : x
  2. Step 2: Convert to fraction form
    7,981,804.80/11,972,707.20 = 3,190,233.60/x
  3. Step 3: Cross multiply
    7,981,804.80x = 11,972,707.20 × 3,190,233.60
  4. Step 4: Simplify right side
    7,981,804.80x = 38,195,732,792,401.92
  5. Step 5: Solve for x
    x = 38,195,732,792,401.92/7,981,804.80
  6. Step 6: Final answer
    x = 4,785,350.40

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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.