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Finding the Third Proportional to 68,653,021 and 103,617,979

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Solution

The third proportional to 68,653,021 and 103,617,979 is: 156,390,577.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,653,021 : 103,617,979 = 103,617,979 : x
  2. Step 2: Convert to fraction form
    68,653,021/103,617,979 = 103,617,979/x
  3. Step 3: Cross multiply
    68,653,021x = 103,617,979 × 103,617,979
  4. Step 4: Simplify right side
    68,653,021x = 10,736,685,572,044,440
  5. Step 5: Solve for x
    x = 10,736,685,572,044,440/68,653,021
  6. Step 6: Final answer
    x = 156,390,577.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.