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Finding the Third Proportional to 9,988,489 and 21,492,933

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Solution

The third proportional to 9,988,489 and 21,492,933 is: 46,247,852.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988,489 : 21,492,933 = 21,492,933 : x
  2. Step 2: Convert to fraction form
    9,988,489/21,492,933 = 21,492,933/x
  3. Step 3: Cross multiply
    9,988,489x = 21,492,933 × 21,492,933
  4. Step 4: Simplify right side
    9,988,489x = 461,946,168,942,489
  5. Step 5: Solve for x
    x = 461,946,168,942,489/9,988,489
  6. Step 6: Final answer
    x = 46,247,852.80

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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.