Home / 20,810,654,717.87-28,718,724,765.11-11,295,208,429.07

Finding the Fourth Proportional to 20,810,654,717.87, 28,718,724,765.11 and 11,295,208,429.07

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Solution

The fourth proportional to 20,810,654,717.87, 28,718,724,765.11 and 11,295,208,429.07 is: 15,587,399,168.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,654,717.87 : 28,718,724,765.11 = 11,295,208,429.07 : x
  2. Step 2: Convert to fraction form
    20,810,654,717.87/28,718,724,765.11 = 11,295,208,429.07/x
  3. Step 3: Cross multiply
    20,810,654,717.87x = 28,718,724,765.11 × 11,295,208,429.07
  4. Step 4: Simplify right side
    20,810,654,717.87x = 324,383,982,038,811,738,112
  5. Step 5: Solve for x
    x = 324,383,982,038,811,738,112/20,810,654,717.87
  6. Step 6: Final answer
    x = 15,587,399,168.19

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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.