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Finding the Third Proportional to 15,328,888 and 21,313,380

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Solution

The third proportional to 15,328,888 and 21,313,380 is: 29,634,254.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328,888 : 21,313,380 = 21,313,380 : x
  2. Step 2: Convert to fraction form
    15,328,888/21,313,380 = 21,313,380/x
  3. Step 3: Cross multiply
    15,328,888x = 21,313,380 × 21,313,380
  4. Step 4: Simplify right side
    15,328,888x = 454,260,167,024,400
  5. Step 5: Solve for x
    x = 454,260,167,024,400/15,328,888
  6. Step 6: Final answer
    x = 29,634,254.42

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.