Home / 393,198,301,442.24-589,824,087,332.39-138,196,682,755.61

Finding the Fourth Proportional to 393,198,301,442.24, 589,824,087,332.39 and 138,196,682,755.61

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Solution

The fourth proportional to 393,198,301,442.24, 589,824,087,332.39 and 138,196,682,755.61 is: 207,304,385,547.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,198,301,442.24 : 589,824,087,332.39 = 138,196,682,755.61 : x
  2. Step 2: Convert to fraction form
    393,198,301,442.24/589,824,087,332.39 = 138,196,682,755.61/x
  3. Step 3: Cross multiply
    393,198,301,442.24x = 589,824,087,332.39 × 138,196,682,755.61
  4. Step 4: Simplify right side
    393,198,301,442.24x = 81,511,732,278,691,505,373,184
  5. Step 5: Solve for x
    x = 81,511,732,278,691,505,373,184/393,198,301,442.24
  6. Step 6: Final answer
    x = 207,304,385,547.21

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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.