Home / 69,679,732.68-104,512,845.24-21,158,012.97

Finding the Fourth Proportional to 69,679,732.68, 104,512,845.24 and 21,158,012.97

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Solution

The fourth proportional to 69,679,732.68, 104,512,845.24 and 21,158,012.97 is: 31,734,968.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,679,732.68 : 104,512,845.24 = 21,158,012.97 : x
  2. Step 2: Convert to fraction form
    69,679,732.68/104,512,845.24 = 21,158,012.97/x
  3. Step 3: Cross multiply
    69,679,732.68x = 104,512,845.24 × 21,158,012.97
  4. Step 4: Simplify right side
    69,679,732.68x = 2,211,284,135,119,522.50
  5. Step 5: Solve for x
    x = 2,211,284,135,119,522.50/69,679,732.68
  6. Step 6: Final answer
    x = 31,734,968.69

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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.