Home / 20,811,231,493-28,718,730,431.56-11,295,578,938.68

Finding the Fourth Proportional to 20,811,231,493, 28,718,730,431.56 and 11,295,578,938.68

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Solution

The fourth proportional to 20,811,231,493, 28,718,730,431.56 and 11,295,578,938.68 is: 15,587,481,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,231,493 : 28,718,730,431.56 = 11,295,578,938.68 : x
  2. Step 2: Convert to fraction form
    20,811,231,493/28,718,730,431.56 = 11,295,578,938.68/x
  3. Step 3: Cross multiply
    20,811,231,493x = 28,718,730,431.56 × 11,295,578,938.68
  4. Step 4: Simplify right side
    20,811,231,493x = 324,394,686,608,357,523,456
  5. Step 5: Solve for x
    x = 324,394,686,608,357,523,456/20,811,231,493
  6. Step 6: Final answer
    x = 15,587,481,534.55

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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.