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Finding the Third Proportional to 21,991,872 and 45,492,288

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Solution

The third proportional to 21,991,872 and 45,492,288 is: 94,105,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,872 : 45,492,288 = 45,492,288 : x
  2. Step 2: Convert to fraction form
    21,991,872/45,492,288 = 45,492,288/x
  3. Step 3: Cross multiply
    21,991,872x = 45,492,288 × 45,492,288
  4. Step 4: Simplify right side
    21,991,872x = 2,069,548,267,474,944
  5. Step 5: Solve for x
    x = 2,069,548,267,474,944/21,991,872
  6. Step 6: Final answer
    x = 94,105,143.37

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.