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Finding the Third Proportional to 21,255,642 and 33,838,317

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Solution

The third proportional to 21,255,642 and 33,838,317 is: 53,869,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255,642 : 33,838,317 = 33,838,317 : x
  2. Step 2: Convert to fraction form
    21,255,642/33,838,317 = 33,838,317/x
  3. Step 3: Cross multiply
    21,255,642x = 33,838,317 × 33,838,317
  4. Step 4: Simplify right side
    21,255,642x = 1,145,031,697,392,489
  5. Step 5: Solve for x
    x = 1,145,031,697,392,489/21,255,642
  6. Step 6: Final answer
    x = 53,869,541.90

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.