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Finding the Third Proportional to 12,157,690.50 and 18,804,660.75

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Solution

The third proportional to 12,157,690.50 and 18,804,660.75 is: 29,085,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157,690.50 : 18,804,660.75 = 18,804,660.75 : x
  2. Step 2: Convert to fraction form
    12,157,690.50/18,804,660.75 = 18,804,660.75/x
  3. Step 3: Cross multiply
    12,157,690.50x = 18,804,660.75 × 18,804,660.75
  4. Step 4: Simplify right side
    12,157,690.50x = 353,615,265,922,590.56
  5. Step 5: Solve for x
    x = 353,615,265,922,590.56/12,157,690.50
  6. Step 6: Final answer
    x = 29,085,726.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.