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Finding the Fourth Proportional to 408,987,215,998.80, 613,480,823,998.20 and 408,987,215,998.80

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Solution

The fourth proportional to 408,987,215,998.80, 613,480,823,998.20 and 408,987,215,998.80 is: 613,480,823,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,987,215,998.80 : 613,480,823,998.20 = 408,987,215,998.80 : x
  2. Step 2: Convert to fraction form
    408,987,215,998.80/613,480,823,998.20 = 408,987,215,998.80/x
  3. Step 3: Cross multiply
    408,987,215,998.80x = 613,480,823,998.20 × 408,987,215,998.80
  4. Step 4: Simplify right side
    408,987,215,998.80x = 250,905,814,275,673,617,858,560
  5. Step 5: Solve for x
    x = 250,905,814,275,673,617,858,560/408,987,215,998.80
  6. Step 6: Final answer
    x = 613,480,823,998.20

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1.5x scale

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.