Home / 393,198,301,444.38-589,824,087,335.48-138,196,682,757.73

Finding the Fourth Proportional to 393,198,301,444.38, 589,824,087,335.48 and 138,196,682,757.73

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Solution

The fourth proportional to 393,198,301,444.38, 589,824,087,335.48 and 138,196,682,757.73 is: 207,304,385,550.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,198,301,444.38 : 589,824,087,335.48 = 138,196,682,757.73 : x
  2. Step 2: Convert to fraction form
    393,198,301,444.38/589,824,087,335.48 = 138,196,682,757.73/x
  3. Step 3: Cross multiply
    393,198,301,444.38x = 589,824,087,335.48 × 138,196,682,757.73
  4. Step 4: Simplify right side
    393,198,301,444.38x = 81,511,732,280,368,958,537,728
  5. Step 5: Solve for x
    x = 81,511,732,280,368,958,537,728/393,198,301,444.38
  6. Step 6: Final answer
    x = 207,304,385,550.35

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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.