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Finding the Third Proportional to 38,621,860 and 80,418,440

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Solution

The third proportional to 38,621,860 and 80,418,440 is: 167,447,282.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,621,860 : 80,418,440 = 80,418,440 : x
  2. Step 2: Convert to fraction form
    38,621,860/80,418,440 = 80,418,440/x
  3. Step 3: Cross multiply
    38,621,860x = 80,418,440 × 80,418,440
  4. Step 4: Simplify right side
    38,621,860x = 6,467,125,492,033,600
  5. Step 5: Solve for x
    x = 6,467,125,492,033,600/38,621,860
  6. Step 6: Final answer
    x = 167,447,282.24

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.