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Finding the Third Proportional to 21,016,806 and 45,275,756

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Solution

The third proportional to 21,016,806 and 45,275,756 is: 97,535,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016,806 : 45,275,756 = 45,275,756 : x
  2. Step 2: Convert to fraction form
    21,016,806/45,275,756 = 45,275,756/x
  3. Step 3: Cross multiply
    21,016,806x = 45,275,756 × 45,275,756
  4. Step 4: Simplify right side
    21,016,806x = 2,049,894,081,371,536
  5. Step 5: Solve for x
    x = 2,049,894,081,371,536/21,016,806
  6. Step 6: Final answer
    x = 97,535,947.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.