Home / 20,280,195,855.49-30,398,823,455.89-6,821,667,542.66

Finding the Fourth Proportional to 20,280,195,855.49, 30,398,823,455.89 and 6,821,667,542.66

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Solution

The fourth proportional to 20,280,195,855.49, 30,398,823,455.89 and 6,821,667,542.66 is: 10,225,279,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,280,195,855.49 : 30,398,823,455.89 = 6,821,667,542.66 : x
  2. Step 2: Convert to fraction form
    20,280,195,855.49/30,398,823,455.89 = 6,821,667,542.66/x
  3. Step 3: Cross multiply
    20,280,195,855.49x = 30,398,823,455.89 × 6,821,667,542.66
  4. Step 4: Simplify right side
    20,280,195,855.49x = 207,370,667,304,110,751,744
  5. Step 5: Solve for x
    x = 207,370,667,304,110,751,744/20,280,195,855.49
  6. Step 6: Final answer
    x = 10,225,279,320.86

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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.