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Finding the Third Proportional to 15,259,336 and 21,389,088

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Solution

The third proportional to 15,259,336 and 21,389,088 is: 29,981,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,259,336 : 21,389,088 = 21,389,088 : x
  2. Step 2: Convert to fraction form
    15,259,336/21,389,088 = 21,389,088/x
  3. Step 3: Cross multiply
    15,259,336x = 21,389,088 × 21,389,088
  4. Step 4: Simplify right side
    15,259,336x = 457,493,085,471,744
  5. Step 5: Solve for x
    x = 457,493,085,471,744/15,259,336
  6. Step 6: Final answer
    x = 29,981,192.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.