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Finding the Third Proportional to 18,520,308 and 39,885,165

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Solution

The third proportional to 18,520,308 and 39,885,165 is: 85,896,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,308 : 39,885,165 = 39,885,165 : x
  2. Step 2: Convert to fraction form
    18,520,308/39,885,165 = 39,885,165/x
  3. Step 3: Cross multiply
    18,520,308x = 39,885,165 × 39,885,165
  4. Step 4: Simplify right side
    18,520,308x = 1,590,826,387,077,225
  5. Step 5: Solve for x
    x = 1,590,826,387,077,225/18,520,308
  6. Step 6: Final answer
    x = 85,896,324.57

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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.