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Finding the Third Proportional to 143,553,212 and 222,711,210

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Solution

The third proportional to 143,553,212 and 222,711,210 is: 345,518,448.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,553,212 : 222,711,210 = 222,711,210 : x
  2. Step 2: Convert to fraction form
    143,553,212/222,711,210 = 222,711,210/x
  3. Step 3: Cross multiply
    143,553,212x = 222,711,210 × 222,711,210
  4. Step 4: Simplify right side
    143,553,212x = 49,600,283,059,664,096
  5. Step 5: Solve for x
    x = 49,600,283,059,664,096/143,553,212
  6. Step 6: Final answer
    x = 345,518,448.31

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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.