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Finding the Third Proportional to 18,520,332 and 39,885,228

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Solution

The third proportional to 18,520,332 and 39,885,228 is: 85,896,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,332 : 39,885,228 = 39,885,228 : x
  2. Step 2: Convert to fraction form
    18,520,332/39,885,228 = 39,885,228/x
  3. Step 3: Cross multiply
    18,520,332x = 39,885,228 × 39,885,228
  4. Step 4: Simplify right side
    18,520,332x = 1,590,831,412,611,984
  5. Step 5: Solve for x
    x = 1,590,831,412,611,984/18,520,332
  6. Step 6: Final answer
    x = 85,896,484.61

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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.