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Finding the Third Proportional to 9,151,232 and 19,720,856

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Solution

The third proportional to 9,151,232 and 19,720,856 is: 42,498,339.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151,232 : 19,720,856 = 19,720,856 : x
  2. Step 2: Convert to fraction form
    9,151,232/19,720,856 = 19,720,856/x
  3. Step 3: Cross multiply
    9,151,232x = 19,720,856 × 19,720,856
  4. Step 4: Simplify right side
    9,151,232x = 388,912,161,372,736
  5. Step 5: Solve for x
    x = 388,912,161,372,736/9,151,232
  6. Step 6: Final answer
    x = 42,498,339.17

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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.