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Finding the Third Proportional to 221,144,556 and 479,880,243

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Solution

The third proportional to 221,144,556 and 479,880,243 is: 1,041,332,654.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,144,556 : 479,880,243 = 479,880,243 : x
  2. Step 2: Convert to fraction form
    221,144,556/479,880,243 = 479,880,243/x
  3. Step 3: Cross multiply
    221,144,556x = 479,880,243 × 479,880,243
  4. Step 4: Simplify right side
    221,144,556x = 230,285,047,621,739,040
  5. Step 5: Solve for x
    x = 230,285,047,621,739,040/221,144,556
  6. Step 6: Final answer
    x = 1,041,332,654.93

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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.