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Finding the Third Proportional to 21,008,850 and 45,698,664

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Solution

The third proportional to 21,008,850 and 45,698,664 is: 99,404,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,850 : 45,698,664 = 45,698,664 : x
  2. Step 2: Convert to fraction form
    21,008,850/45,698,664 = 45,698,664/x
  3. Step 3: Cross multiply
    21,008,850x = 45,698,664 × 45,698,664
  4. Step 4: Simplify right side
    21,008,850x = 2,088,367,891,384,896
  5. Step 5: Solve for x
    x = 2,088,367,891,384,896/21,008,850
  6. Step 6: Final answer
    x = 99,404,198.30

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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.