Home / 18,394,988,209.81-25,389,806,873.42-11,980,791,789.44

Finding the Fourth Proportional to 18,394,988,209.81, 25,389,806,873.42 and 11,980,791,789.44

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Solution

The fourth proportional to 18,394,988,209.81, 25,389,806,873.42 and 11,980,791,789.44 is: 16,536,568,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394,988,209.81 : 25,389,806,873.42 = 11,980,791,789.44 : x
  2. Step 2: Convert to fraction form
    18,394,988,209.81/25,389,806,873.42 = 11,980,791,789.44/x
  3. Step 3: Cross multiply
    18,394,988,209.81x = 25,389,806,873.42 × 11,980,791,789.44
  4. Step 4: Simplify right side
    18,394,988,209.81x = 304,189,989,724,589,850,624
  5. Step 5: Solve for x
    x = 304,189,989,724,589,850,624/18,394,988,209.81
  6. Step 6: Final answer
    x = 16,536,568,887.95

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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.