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Finding the Third Proportional to 20,124,118 and 31,381,920

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Solution

The third proportional to 20,124,118 and 31,381,920 is: 48,937,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,118 : 31,381,920 = 31,381,920 : x
  2. Step 2: Convert to fraction form
    20,124,118/31,381,920 = 31,381,920/x
  3. Step 3: Cross multiply
    20,124,118x = 31,381,920 × 31,381,920
  4. Step 4: Simplify right side
    20,124,118x = 984,824,902,886,400
  5. Step 5: Solve for x
    x = 984,824,902,886,400/20,124,118
  6. Step 6: Final answer
    x = 48,937,543.64

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.