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Finding the Third Proportional to 5,921,400 and 12,912,972

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Solution

The third proportional to 5,921,400 and 12,912,972 is: 28,159,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921,400 : 12,912,972 = 12,912,972 : x
  2. Step 2: Convert to fraction form
    5,921,400/12,912,972 = 12,912,972/x
  3. Step 3: Cross multiply
    5,921,400x = 12,912,972 × 12,912,972
  4. Step 4: Simplify right side
    5,921,400x = 166,744,845,872,784
  5. Step 5: Solve for x
    x = 166,744,845,872,784/5,921,400
  6. Step 6: Final answer
    x = 28,159,699.71

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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.