Home / 15,315,843,952.56-21,135,864,695.21-8,275,313,584.57

Finding the Fourth Proportional to 15,315,843,952.56, 21,135,864,695.21 and 8,275,313,584.57

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Solution

The fourth proportional to 15,315,843,952.56, 21,135,864,695.21 and 8,275,313,584.57 is: 11,419,932,768.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315,843,952.56 : 21,135,864,695.21 = 8,275,313,584.57 : x
  2. Step 2: Convert to fraction form
    15,315,843,952.56/21,135,864,695.21 = 8,275,313,584.57/x
  3. Step 3: Cross multiply
    15,315,843,952.56x = 21,135,864,695.21 × 8,275,313,584.57
  4. Step 4: Simplify right side
    15,315,843,952.56x = 174,905,908,233,876,766,720
  5. Step 5: Solve for x
    x = 174,905,908,233,876,766,720/15,315,843,952.56
  6. Step 6: Final answer
    x = 11,419,932,768.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.