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Finding the Third Proportional to 18,520,338 and 39,885,240

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Solution

The third proportional to 18,520,338 and 39,885,240 is: 85,896,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,338 : 39,885,240 = 39,885,240 : x
  2. Step 2: Convert to fraction form
    18,520,338/39,885,240 = 39,885,240/x
  3. Step 3: Cross multiply
    18,520,338x = 39,885,240 × 39,885,240
  4. Step 4: Simplify right side
    18,520,338x = 1,590,832,369,857,600
  5. Step 5: Solve for x
    x = 1,590,832,369,857,600/18,520,338
  6. Step 6: Final answer
    x = 85,896,508.47

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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.