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Finding the Third Proportional to 9,891,208 and 21,088,912

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Solution

The third proportional to 9,891,208 and 21,088,912 is: 44,963,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891,208 : 21,088,912 = 21,088,912 : x
  2. Step 2: Convert to fraction form
    9,891,208/21,088,912 = 21,088,912/x
  3. Step 3: Cross multiply
    9,891,208x = 21,088,912 × 21,088,912
  4. Step 4: Simplify right side
    9,891,208x = 444,742,209,343,744
  5. Step 5: Solve for x
    x = 444,742,209,343,744/9,891,208
  6. Step 6: Final answer
    x = 44,963,386.61

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.