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Finding the Third Proportional to 15,167,680 and 21,461,806

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Solution

The third proportional to 15,167,680 and 21,461,806 is: 30,367,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167,680 : 21,461,806 = 21,461,806 : x
  2. Step 2: Convert to fraction form
    15,167,680/21,461,806 = 21,461,806/x
  3. Step 3: Cross multiply
    15,167,680x = 21,461,806 × 21,461,806
  4. Step 4: Simplify right side
    15,167,680x = 460,609,116,781,636
  5. Step 5: Solve for x
    x = 460,609,116,781,636/15,167,680
  6. Step 6: Final answer
    x = 30,367,802.91

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.