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Finding the Third Proportional to 12,369,888 and 18,725,920

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Solution

The third proportional to 12,369,888 and 18,725,920 is: 28,347,878.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369,888 : 18,725,920 = 18,725,920 : x
  2. Step 2: Convert to fraction form
    12,369,888/18,725,920 = 18,725,920/x
  3. Step 3: Cross multiply
    12,369,888x = 18,725,920 × 18,725,920
  4. Step 4: Simplify right side
    12,369,888x = 350,660,079,846,400
  5. Step 5: Solve for x
    x = 350,660,079,846,400/12,369,888
  6. Step 6: Final answer
    x = 28,347,878.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.