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Finding the Third Proportional to 143,643,870 and 222,876,321.75

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Solution

The third proportional to 143,643,870 and 222,876,321.75 is: 345,812,562.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,643,870 : 222,876,321.75 = 222,876,321.75 : x
  2. Step 2: Convert to fraction form
    143,643,870/222,876,321.75 = 222,876,321.75/x
  3. Step 3: Cross multiply
    143,643,870x = 222,876,321.75 × 222,876,321.75
  4. Step 4: Simplify right side
    143,643,870x = 49,673,854,796,809,520
  5. Step 5: Solve for x
    x = 49,673,854,796,809,520/143,643,870
  6. Step 6: Final answer
    x = 345,812,562.67

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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.