Home / 192,199,747.62-288,404,576.69-81,518,201.55

Finding the Fourth Proportional to 192,199,747.62, 288,404,576.69 and 81,518,201.55

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Solution

The fourth proportional to 192,199,747.62, 288,404,576.69 and 81,518,201.55 is: 122,321,817.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,199,747.62 : 288,404,576.69 = 81,518,201.55 : x
  2. Step 2: Convert to fraction form
    192,199,747.62/288,404,576.69 = 81,518,201.55/x
  3. Step 3: Cross multiply
    192,199,747.62x = 288,404,576.69 × 81,518,201.55
  4. Step 4: Simplify right side
    192,199,747.62x = 23,510,222,410,724,152
  5. Step 5: Solve for x
    x = 23,510,222,410,724,152/192,199,747.62
  6. Step 6: Final answer
    x = 122,321,817.29

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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.