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Finding the Third Proportional to 21,008,896 and 45,698,756

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Solution

The third proportional to 21,008,896 and 45,698,756 is: 99,404,380.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,896 : 45,698,756 = 45,698,756 : x
  2. Step 2: Convert to fraction form
    21,008,896/45,698,756 = 45,698,756/x
  3. Step 3: Cross multiply
    21,008,896x = 45,698,756 × 45,698,756
  4. Step 4: Simplify right side
    21,008,896x = 2,088,376,299,947,536
  5. Step 5: Solve for x
    x = 2,088,376,299,947,536/21,008,896
  6. Step 6: Final answer
    x = 99,404,380.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.