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Finding the Third Proportional to 8,640,896 and 18,909,184

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Solution

The third proportional to 8,640,896 and 18,909,184 is: 41,379,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,896 : 18,909,184 = 18,909,184 : x
  2. Step 2: Convert to fraction form
    8,640,896/18,909,184 = 18,909,184/x
  3. Step 3: Cross multiply
    8,640,896x = 18,909,184 × 18,909,184
  4. Step 4: Simplify right side
    8,640,896x = 357,557,239,545,856
  5. Step 5: Solve for x
    x = 357,557,239,545,856/8,640,896
  6. Step 6: Final answer
    x = 41,379,648.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.