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Finding the Third Proportional to 18,929,920 and 30,907,584

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Solution

The third proportional to 18,929,920 and 30,907,584 is: 50,463,961.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929,920 : 30,907,584 = 30,907,584 : x
  2. Step 2: Convert to fraction form
    18,929,920/30,907,584 = 30,907,584/x
  3. Step 3: Cross multiply
    18,929,920x = 30,907,584 × 30,907,584
  4. Step 4: Simplify right side
    18,929,920x = 955,278,748,717,056
  5. Step 5: Solve for x
    x = 955,278,748,717,056/18,929,920
  6. Step 6: Final answer
    x = 50,463,961.22

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.