Home / 309,729,732.17-464,599,524.66-172,428,035.09

Finding the Fourth Proportional to 309,729,732.17, 464,599,524.66 and 172,428,035.09

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Solution

The fourth proportional to 309,729,732.17, 464,599,524.66 and 172,428,035.09 is: 258,644,795.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,729,732.17 : 464,599,524.66 = 172,428,035.09 : x
  2. Step 2: Convert to fraction form
    309,729,732.17/464,599,524.66 = 172,428,035.09/x
  3. Step 3: Cross multiply
    309,729,732.17x = 464,599,524.66 × 172,428,035.09
  4. Step 4: Simplify right side
    309,729,732.17x = 80,109,983,138,548,816
  5. Step 5: Solve for x
    x = 80,109,983,138,548,816/309,729,732.17
  6. Step 6: Final answer
    x = 258,644,795.19

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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.