Home / 252,319,021.38-378,476,008.89-79,795,864.26

Finding the Fourth Proportional to 252,319,021.38, 378,476,008.89 and 79,795,864.26

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Solution

The fourth proportional to 252,319,021.38, 378,476,008.89 and 79,795,864.26 is: 119,692,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,319,021.38 : 378,476,008.89 = 79,795,864.26 : x
  2. Step 2: Convert to fraction form
    252,319,021.38/378,476,008.89 = 79,795,864.26/x
  3. Step 3: Cross multiply
    252,319,021.38x = 378,476,008.89 × 79,795,864.26
  4. Step 4: Simplify right side
    252,319,021.38x = 30,200,820,231,052,996
  5. Step 5: Solve for x
    x = 30,200,820,231,052,996/252,319,021.38
  6. Step 6: Final answer
    x = 119,692,998.43

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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.