Home / 18,394,429,990.84-27,591,248,468.46-5,129,334,619.72

Finding the Fourth Proportional to 18,394,429,990.84, 27,591,248,468.46 and 5,129,334,619.72

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Solution

The fourth proportional to 18,394,429,990.84, 27,591,248,468.46 and 5,129,334,619.72 is: 7,693,891,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394,429,990.84 : 27,591,248,468.46 = 5,129,334,619.72 : x
  2. Step 2: Convert to fraction form
    18,394,429,990.84/27,591,248,468.46 = 5,129,334,619.72/x
  3. Step 3: Cross multiply
    18,394,429,990.84x = 27,591,248,468.46 × 5,129,334,619.72
  4. Step 4: Simplify right side
    18,394,429,990.84x = 141,524,745,970,568,314,880
  5. Step 5: Solve for x
    x = 141,524,745,970,568,314,880/18,394,429,990.84
  6. Step 6: Final answer
    x = 7,693,891,359.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.