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Finding the Third Proportional to 7,836,161.50 and 12,108,859

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Solution

The third proportional to 7,836,161.50 and 12,108,859 is: 18,711,261.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836,161.50 : 12,108,859 = 12,108,859 : x
  2. Step 2: Convert to fraction form
    7,836,161.50/12,108,859 = 12,108,859/x
  3. Step 3: Cross multiply
    7,836,161.50x = 12,108,859 × 12,108,859
  4. Step 4: Simplify right side
    7,836,161.50x = 146,624,466,281,881
  5. Step 5: Solve for x
    x = 146,624,466,281,881/7,836,161.50
  6. Step 6: Final answer
    x = 18,711,261.41

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.