Home / 68,719,217-103,078,825.56-20,850,161

Finding the Fourth Proportional to 68,719,217, 103,078,825.56 and 20,850,161

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Solution

The fourth proportional to 68,719,217, 103,078,825.56 and 20,850,161 is: 31,275,241.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,719,217 : 103,078,825.56 = 20,850,161 : x
  2. Step 2: Convert to fraction form
    68,719,217/103,078,825.56 = 20,850,161/x
  3. Step 3: Cross multiply
    68,719,217x = 103,078,825.56 × 20,850,161
  4. Step 4: Simplify right side
    68,719,217x = 2,149,210,108,616,915.25
  5. Step 5: Solve for x
    x = 2,149,210,108,616,915.25/68,719,217
  6. Step 6: Final answer
    x = 31,275,241.52

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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.