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Finding the Third Proportional to 3,912,679.69 and 8,520,369.75

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Solution

The third proportional to 3,912,679.69 and 8,520,369.75 is: 18,554,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912,679.69 : 8,520,369.75 = 8,520,369.75 : x
  2. Step 2: Convert to fraction form
    3,912,679.69/8,520,369.75 = 8,520,369.75/x
  3. Step 3: Cross multiply
    3,912,679.69x = 8,520,369.75 × 8,520,369.75
  4. Step 4: Simplify right side
    3,912,679.69x = 72,596,700,676,715.06
  5. Step 5: Solve for x
    x = 72,596,700,676,715.06/3,912,679.69
  6. Step 6: Final answer
    x = 18,554,215.14

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.