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Finding the Third Proportional to 12,118,542 and 18,208,920

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Solution

The third proportional to 12,118,542 and 18,208,920 is: 27,360,120.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118,542 : 18,208,920 = 18,208,920 : x
  2. Step 2: Convert to fraction form
    12,118,542/18,208,920 = 18,208,920/x
  3. Step 3: Cross multiply
    12,118,542x = 18,208,920 × 18,208,920
  4. Step 4: Simplify right side
    12,118,542x = 331,564,767,566,400
  5. Step 5: Solve for x
    x = 331,564,767,566,400/12,118,542
  6. Step 6: Final answer
    x = 27,360,120.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.