Home / 68,719,229-103,078,843.56-20,850,173

Finding the Fourth Proportional to 68,719,229, 103,078,843.56 and 20,850,173

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Solution

The fourth proportional to 68,719,229, 103,078,843.56 and 20,850,173 is: 31,275,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,719,229 : 103,078,843.56 = 20,850,173 : x
  2. Step 2: Convert to fraction form
    68,719,229/103,078,843.56 = 20,850,173/x
  3. Step 3: Cross multiply
    68,719,229x = 103,078,843.56 × 20,850,173
  4. Step 4: Simplify right side
    68,719,229x = 2,149,211,720,865,936
  5. Step 5: Solve for x
    x = 2,149,211,720,865,936/68,719,229
  6. Step 6: Final answer
    x = 31,275,259.52

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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.