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Finding the Third Proportional to 218,920,072 and 475,945,460

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Solution

The third proportional to 218,920,072 and 475,945,460 is: 1,034,734,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,920,072 : 475,945,460 = 475,945,460 : x
  2. Step 2: Convert to fraction form
    218,920,072/475,945,460 = 475,945,460/x
  3. Step 3: Cross multiply
    218,920,072x = 475,945,460 × 475,945,460
  4. Step 4: Simplify right side
    218,920,072x = 226,524,080,894,611,584
  5. Step 5: Solve for x
    x = 226,524,080,894,611,584/218,920,072
  6. Step 6: Final answer
    x = 1,034,734,178.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.