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Finding the Third Proportional to 76,607,880 and 170,221,656

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Solution

The third proportional to 76,607,880 and 170,221,656 is: 378,230,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,607,880 : 170,221,656 = 170,221,656 : x
  2. Step 2: Convert to fraction form
    76,607,880/170,221,656 = 170,221,656/x
  3. Step 3: Cross multiply
    76,607,880x = 170,221,656 × 170,221,656
  4. Step 4: Simplify right side
    76,607,880x = 28,975,412,171,382,336
  5. Step 5: Solve for x
    x = 28,975,412,171,382,336/76,607,880
  6. Step 6: Final answer
    x = 378,230,179.08

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.