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Finding the Third Proportional to 80,899,560 and 178,290,477

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Solution

The third proportional to 80,899,560 and 178,290,477 is: 392,925,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,899,560 : 178,290,477 = 178,290,477 : x
  2. Step 2: Convert to fraction form
    80,899,560/178,290,477 = 178,290,477/x
  3. Step 3: Cross multiply
    80,899,560x = 178,290,477 × 178,290,477
  4. Step 4: Simplify right side
    80,899,560x = 31,787,494,188,887,528
  5. Step 5: Solve for x
    x = 31,787,494,188,887,528/80,899,560
  6. Step 6: Final answer
    x = 392,925,427.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.