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Finding the Third Proportional to 18,520,230 and 39,885,000

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Solution

The third proportional to 18,520,230 and 39,885,000 is: 85,895,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,230 : 39,885,000 = 39,885,000 : x
  2. Step 2: Convert to fraction form
    18,520,230/39,885,000 = 39,885,000/x
  3. Step 3: Cross multiply
    18,520,230x = 39,885,000 × 39,885,000
  4. Step 4: Simplify right side
    18,520,230x = 1,590,813,225,000,000
  5. Step 5: Solve for x
    x = 1,590,813,225,000,000/18,520,230
  6. Step 6: Final answer
    x = 85,895,975.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.