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Finding the Fourth Proportional to 324,562,936.56, 485,680,687.56 and 280,993,559.28

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Solution

The fourth proportional to 324,562,936.56, 485,680,687.56 and 280,993,559.28 is: 420,482,839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,562,936.56 : 485,680,687.56 = 280,993,559.28 : x
  2. Step 2: Convert to fraction form
    324,562,936.56/485,680,687.56 = 280,993,559.28/x
  3. Step 3: Cross multiply
    324,562,936.56x = 485,680,687.56 × 280,993,559.28
  4. Step 4: Simplify right side
    324,562,936.56x = 136,473,145,071,042,000
  5. Step 5: Solve for x
    x = 136,473,145,071,042,000/324,562,936.56
  6. Step 6: Final answer
    x = 420,482,839.22

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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.