Home / 987,843,993.33-1,481,853,087.83-278,798,874.54

Finding the Fourth Proportional to 987,843,993.33, 1,481,853,087.83 and 278,798,874.54

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Solution

The fourth proportional to 987,843,993.33, 1,481,853,087.83 and 278,798,874.54 is: 418,222,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,843,993.33 : 1,481,853,087.83 = 278,798,874.54 : x
  2. Step 2: Convert to fraction form
    987,843,993.33/1,481,853,087.83 = 278,798,874.54/x
  3. Step 3: Cross multiply
    987,843,993.33x = 1,481,853,087.83 × 278,798,874.54
  4. Step 4: Simplify right side
    987,843,993.33x = 413,138,973,120,627,776
  5. Step 5: Solve for x
    x = 413,138,973,120,627,776/987,843,993.33
  6. Step 6: Final answer
    x = 418,222,893.40

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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.