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Finding the Third Proportional to 15,167,686 and 21,461,810

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Solution

The third proportional to 15,167,686 and 21,461,810 is: 30,367,802.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167,686 : 21,461,810 = 21,461,810 : x
  2. Step 2: Convert to fraction form
    15,167,686/21,461,810 = 21,461,810/x
  3. Step 3: Cross multiply
    15,167,686x = 21,461,810 × 21,461,810
  4. Step 4: Simplify right side
    15,167,686x = 460,609,288,476,100
  5. Step 5: Solve for x
    x = 460,609,288,476,100/15,167,686
  6. Step 6: Final answer
    x = 30,367,802.21

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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.