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Finding the Third Proportional to 13,505,908 and 20,221,905

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Solution

The third proportional to 13,505,908 and 20,221,905 is: 30,277,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,908 : 20,221,905 = 20,221,905 : x
  2. Step 2: Convert to fraction form
    13,505,908/20,221,905 = 20,221,905/x
  3. Step 3: Cross multiply
    13,505,908x = 20,221,905 × 20,221,905
  4. Step 4: Simplify right side
    13,505,908x = 408,925,441,829,025
  5. Step 5: Solve for x
    x = 408,925,441,829,025/13,505,908
  6. Step 6: Final answer
    x = 30,277,523.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.