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Finding the Third Proportional to 15,149,056 and 21,308,156

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Solution

The third proportional to 15,149,056 and 21,308,156 is: 29,971,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149,056 : 21,308,156 = 21,308,156 : x
  2. Step 2: Convert to fraction form
    15,149,056/21,308,156 = 21,308,156/x
  3. Step 3: Cross multiply
    15,149,056x = 21,308,156 × 21,308,156
  4. Step 4: Simplify right side
    15,149,056x = 454,037,512,120,336
  5. Step 5: Solve for x
    x = 454,037,512,120,336/15,149,056
  6. Step 6: Final answer
    x = 29,971,340.27

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.