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Finding the Third Proportional to 9,447,979 and 20,726,477

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Solution

The third proportional to 9,447,979 and 20,726,477 is: 45,468,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,447,979 : 20,726,477 = 20,726,477 : x
  2. Step 2: Convert to fraction form
    9,447,979/20,726,477 = 20,726,477/x
  3. Step 3: Cross multiply
    9,447,979x = 20,726,477 × 20,726,477
  4. Step 4: Simplify right side
    9,447,979x = 429,586,848,831,529
  5. Step 5: Solve for x
    x = 429,586,848,831,529/9,447,979
  6. Step 6: Final answer
    x = 45,468,649.84

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.