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Finding the Third Proportional to 18,520,294 and 39,885,142

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Solution

The third proportional to 18,520,294 and 39,885,142 is: 85,896,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,294 : 39,885,142 = 39,885,142 : x
  2. Step 2: Convert to fraction form
    18,520,294/39,885,142 = 39,885,142/x
  3. Step 3: Cross multiply
    18,520,294x = 39,885,142 × 39,885,142
  4. Step 4: Simplify right side
    18,520,294x = 1,590,824,552,360,164
  5. Step 5: Solve for x
    x = 1,590,824,552,360,164/18,520,294
  6. Step 6: Final answer
    x = 85,896,290.43

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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.