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Finding the Third Proportional to 17,890,072 and 39,294,680

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Solution

The third proportional to 17,890,072 and 39,294,680 is: 86,308,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890,072 : 39,294,680 = 39,294,680 : x
  2. Step 2: Convert to fraction form
    17,890,072/39,294,680 = 39,294,680/x
  3. Step 3: Cross multiply
    17,890,072x = 39,294,680 × 39,294,680
  4. Step 4: Simplify right side
    17,890,072x = 1,544,071,876,302,400
  5. Step 5: Solve for x
    x = 1,544,071,876,302,400/17,890,072
  6. Step 6: Final answer
    x = 86,308,868.76

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.