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Finding the Third Proportional to 68,019,491 and 138,893,989

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Solution

The third proportional to 68,019,491 and 138,893,989 is: 283,617,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019,491 : 138,893,989 = 138,893,989 : x
  2. Step 2: Convert to fraction form
    68,019,491/138,893,989 = 138,893,989/x
  3. Step 3: Cross multiply
    68,019,491x = 138,893,989 × 138,893,989
  4. Step 4: Simplify right side
    68,019,491x = 19,291,540,180,332,120
  5. Step 5: Solve for x
    x = 19,291,540,180,332,120/68,019,491
  6. Step 6: Final answer
    x = 283,617,826.25

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.