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Finding the Third Proportional to 68,019,489 and 138,893,985

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Solution

The third proportional to 68,019,489 and 138,893,985 is: 283,617,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019,489 : 138,893,985 = 138,893,985 : x
  2. Step 2: Convert to fraction form
    68,019,489/138,893,985 = 138,893,985/x
  3. Step 3: Cross multiply
    68,019,489x = 138,893,985 × 138,893,985
  4. Step 4: Simplify right side
    68,019,489x = 19,291,539,069,180,224
  5. Step 5: Solve for x
    x = 19,291,539,069,180,224/68,019,489
  6. Step 6: Final answer
    x = 283,617,818.26

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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.