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Finding the Third Proportional to 9,949,908 and 21,579,420

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Solution

The third proportional to 9,949,908 and 21,579,420 is: 46,801,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,949,908 : 21,579,420 = 21,579,420 : x
  2. Step 2: Convert to fraction form
    9,949,908/21,579,420 = 21,579,420/x
  3. Step 3: Cross multiply
    9,949,908x = 21,579,420 × 21,579,420
  4. Step 4: Simplify right side
    9,949,908x = 465,671,367,536,400
  5. Step 5: Solve for x
    x = 465,671,367,536,400/9,949,908
  6. Step 6: Final answer
    x = 46,801,575.20

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.