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Finding the Third Proportional to 139,816,000 and 217,085,276

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Solution

The third proportional to 139,816,000 and 217,085,276 is: 337,057,397.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,816,000 : 217,085,276 = 217,085,276 : x
  2. Step 2: Convert to fraction form
    139,816,000/217,085,276 = 217,085,276/x
  3. Step 3: Cross multiply
    139,816,000x = 217,085,276 × 217,085,276
  4. Step 4: Simplify right side
    139,816,000x = 47,126,017,055,996,176
  5. Step 5: Solve for x
    x = 47,126,017,055,996,176/139,816,000
  6. Step 6: Final answer
    x = 337,057,397.26

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.