Home / 18,394,429,987.85-27,591,248,463.96-5,129,334,616.73

Finding the Fourth Proportional to 18,394,429,987.85, 27,591,248,463.96 and 5,129,334,616.73

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Solution

The fourth proportional to 18,394,429,987.85, 27,591,248,463.96 and 5,129,334,616.73 is: 7,693,891,355.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394,429,987.85 : 27,591,248,463.96 = 5,129,334,616.73 : x
  2. Step 2: Convert to fraction form
    18,394,429,987.85/27,591,248,463.96 = 5,129,334,616.73/x
  3. Step 3: Cross multiply
    18,394,429,987.85x = 27,591,248,463.96 × 5,129,334,616.73
  4. Step 4: Simplify right side
    18,394,429,987.85x = 141,524,745,864,988,442,624
  5. Step 5: Solve for x
    x = 141,524,745,864,988,442,624/18,394,429,987.85
  6. Step 6: Final answer
    x = 7,693,891,355.07

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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.