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Finding the Third Proportional to 9,986,285 and 21,515,229

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Solution

The third proportional to 9,986,285 and 21,515,229 is: 46,354,082.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986,285 : 21,515,229 = 21,515,229 : x
  2. Step 2: Convert to fraction form
    9,986,285/21,515,229 = 21,515,229/x
  3. Step 3: Cross multiply
    9,986,285x = 21,515,229 × 21,515,229
  4. Step 4: Simplify right side
    9,986,285x = 462,905,078,922,441
  5. Step 5: Solve for x
    x = 462,905,078,922,441/9,986,285
  6. Step 6: Final answer
    x = 46,354,082.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.