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Finding the Third Proportional to 15,699,254 and 21,204,417

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Solution

The third proportional to 15,699,254 and 21,204,417 is: 28,640,042.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699,254 : 21,204,417 = 21,204,417 : x
  2. Step 2: Convert to fraction form
    15,699,254/21,204,417 = 21,204,417/x
  3. Step 3: Cross multiply
    15,699,254x = 21,204,417 × 21,204,417
  4. Step 4: Simplify right side
    15,699,254x = 449,627,300,309,889
  5. Step 5: Solve for x
    x = 449,627,300,309,889/15,699,254
  6. Step 6: Final answer
    x = 28,640,042.41

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.