Home / 3,981,344,003.80-5,972,016,005.70-1,221,398,992.60

Finding the Fourth Proportional to 3,981,344,003.80, 5,972,016,005.70 and 1,221,398,992.60

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Solution

The fourth proportional to 3,981,344,003.80, 5,972,016,005.70 and 1,221,398,992.60 is: 1,832,098,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,344,003.80 : 5,972,016,005.70 = 1,221,398,992.60 : x
  2. Step 2: Convert to fraction form
    3,981,344,003.80/5,972,016,005.70 = 1,221,398,992.60/x
  3. Step 3: Cross multiply
    3,981,344,003.80x = 5,972,016,005.70 × 1,221,398,992.60
  4. Step 4: Simplify right side
    3,981,344,003.80x = 7,294,214,333,153,054,720
  5. Step 5: Solve for x
    x = 7,294,214,333,153,054,720/3,981,344,003.80
  6. Step 6: Final answer
    x = 1,832,098,488.90

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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.