Home / 420,933,077.11-580,599,418.21-274,453,765.75

Finding the Fourth Proportional to 420,933,077.11, 580,599,418.21 and 274,453,765.75

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Solution

The fourth proportional to 420,933,077.11, 580,599,418.21 and 274,453,765.75 is: 378,558,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,933,077.11 : 580,599,418.21 = 274,453,765.75 : x
  2. Step 2: Convert to fraction form
    420,933,077.11/580,599,418.21 = 274,453,765.75/x
  3. Step 3: Cross multiply
    420,933,077.11x = 580,599,418.21 × 274,453,765.75
  4. Step 4: Simplify right side
    420,933,077.11x = 159,347,696,719,993,632
  5. Step 5: Solve for x
    x = 159,347,696,719,993,632/420,933,077.11
  6. Step 6: Final answer
    x = 378,558,268.25

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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.