Home / 320,789,860.38-442,690,334.94-174,112,174.62

Finding the Fourth Proportional to 320,789,860.38, 442,690,334.94 and 174,112,174.62

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Solution

The fourth proportional to 320,789,860.38, 442,690,334.94 and 174,112,174.62 is: 240,274,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,789,860.38 : 442,690,334.94 = 174,112,174.62 : x
  2. Step 2: Convert to fraction form
    320,789,860.38/442,690,334.94 = 174,112,174.62/x
  3. Step 3: Cross multiply
    320,789,860.38x = 442,690,334.94 × 174,112,174.62
  4. Step 4: Simplify right side
    320,789,860.38x = 77,077,776,899,659,568
  5. Step 5: Solve for x
    x = 77,077,776,899,659,568/320,789,860.38
  6. Step 6: Final answer
    x = 240,274,978.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.