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Finding the Third Proportional to 12,421,813.50 and 18,856,242

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Solution

The third proportional to 12,421,813.50 and 18,856,242 is: 28,623,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421,813.50 : 18,856,242 = 18,856,242 : x
  2. Step 2: Convert to fraction form
    12,421,813.50/18,856,242 = 18,856,242/x
  3. Step 3: Cross multiply
    12,421,813.50x = 18,856,242 × 18,856,242
  4. Step 4: Simplify right side
    12,421,813.50x = 355,557,862,362,564
  5. Step 5: Solve for x
    x = 355,557,862,362,564/12,421,813.50
  6. Step 6: Final answer
    x = 28,623,667.74

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.