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Finding the Third Proportional to 13,188,369 and 19,920,357

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Solution

The third proportional to 13,188,369 and 19,920,357 is: 30,088,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,369 : 19,920,357 = 19,920,357 : x
  2. Step 2: Convert to fraction form
    13,188,369/19,920,357 = 19,920,357/x
  3. Step 3: Cross multiply
    13,188,369x = 19,920,357 × 19,920,357
  4. Step 4: Simplify right side
    13,188,369x = 396,820,623,007,449
  5. Step 5: Solve for x
    x = 396,820,623,007,449/13,188,369
  6. Step 6: Final answer
    x = 30,088,680.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.