Home / 305,216,961.26-421,195,406.36-165,984,755.54

Finding the Fourth Proportional to 305,216,961.26, 421,195,406.36 and 165,984,755.54

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Solution

The fourth proportional to 305,216,961.26, 421,195,406.36 and 165,984,755.54 is: 229,056,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,216,961.26 : 421,195,406.36 = 165,984,755.54 : x
  2. Step 2: Convert to fraction form
    305,216,961.26/421,195,406.36 = 165,984,755.54/x
  3. Step 3: Cross multiply
    305,216,961.26x = 421,195,406.36 × 165,984,755.54
  4. Step 4: Simplify right side
    305,216,961.26x = 69,912,016,559,235,560
  5. Step 5: Solve for x
    x = 69,912,016,559,235,560/305,216,961.26
  6. Step 6: Final answer
    x = 229,056,787.25

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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.