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Finding the Third Proportional to 4,640,544 and 9,991,981.50

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Solution

The third proportional to 4,640,544 and 9,991,981.50 is: 21,514,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640,544 : 9,991,981.50 = 9,991,981.50 : x
  2. Step 2: Convert to fraction form
    4,640,544/9,991,981.50 = 9,991,981.50/x
  3. Step 3: Cross multiply
    4,640,544x = 9,991,981.50 × 9,991,981.50
  4. Step 4: Simplify right side
    4,640,544x = 99,839,694,296,342.25
  5. Step 5: Solve for x
    x = 99,839,694,296,342.25/4,640,544
  6. Step 6: Final answer
    x = 21,514,653.09

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.