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Finding the Third Proportional to 10,705,380 and 15,260,908

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Solution

The third proportional to 10,705,380 and 15,260,908 is: 21,754,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,705,380 : 15,260,908 = 15,260,908 : x
  2. Step 2: Convert to fraction form
    10,705,380/15,260,908 = 15,260,908/x
  3. Step 3: Cross multiply
    10,705,380x = 15,260,908 × 15,260,908
  4. Step 4: Simplify right side
    10,705,380x = 232,895,312,984,464
  5. Step 5: Solve for x
    x = 232,895,312,984,464/10,705,380
  6. Step 6: Final answer
    x = 21,754,978.62

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.