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Finding the Third Proportional to 30,681,435 and 68,173,326

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Solution

The third proportional to 30,681,435 and 68,173,326 is: 151,479,302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,681,435 : 68,173,326 = 68,173,326 : x
  2. Step 2: Convert to fraction form
    30,681,435/68,173,326 = 68,173,326/x
  3. Step 3: Cross multiply
    30,681,435x = 68,173,326 × 68,173,326
  4. Step 4: Simplify right side
    30,681,435x = 4,647,602,377,902,276
  5. Step 5: Solve for x
    x = 4,647,602,377,902,276/30,681,435
  6. Step 6: Final answer
    x = 151,479,302.64

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.