Home / 20,810,654,728.91-28,718,724,780.30-11,295,208,440.07

Finding the Fourth Proportional to 20,810,654,728.91, 28,718,724,780.30 and 11,295,208,440.07

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Solution

The fourth proportional to 20,810,654,728.91, 28,718,724,780.30 and 11,295,208,440.07 is: 15,587,399,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,654,728.91 : 28,718,724,780.30 = 11,295,208,440.07 : x
  2. Step 2: Convert to fraction form
    20,810,654,728.91/28,718,724,780.30 = 11,295,208,440.07/x
  3. Step 3: Cross multiply
    20,810,654,728.91x = 28,718,724,780.30 × 11,295,208,440.07
  4. Step 4: Simplify right side
    20,810,654,728.91x = 324,383,982,526,491,983,872
  5. Step 5: Solve for x
    x = 324,383,982,526,491,983,872/20,810,654,728.91
  6. Step 6: Final answer
    x = 15,587,399,183.35

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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.