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Finding the Third Proportional to 68,653,138 and 103,618,143

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Solution

The third proportional to 68,653,138 and 103,618,143 is: 156,390,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,653,138 : 103,618,143 = 103,618,143 : x
  2. Step 2: Convert to fraction form
    68,653,138/103,618,143 = 103,618,143/x
  3. Step 3: Cross multiply
    68,653,138x = 103,618,143 × 103,618,143
  4. Step 4: Simplify right side
    68,653,138x = 10,736,719,558,768,448
  5. Step 5: Solve for x
    x = 10,736,719,558,768,448/68,653,138
  6. Step 6: Final answer
    x = 156,390,805.60

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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.