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Finding the Third Proportional to 6,420,403.50 and 13,749,877.50

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Solution

The third proportional to 6,420,403.50 and 13,749,877.50 is: 29,446,612.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,403.50 : 13,749,877.50 = 13,749,877.50 : x
  2. Step 2: Convert to fraction form
    6,420,403.50/13,749,877.50 = 13,749,877.50/x
  3. Step 3: Cross multiply
    6,420,403.50x = 13,749,877.50 × 13,749,877.50
  4. Step 4: Simplify right side
    6,420,403.50x = 189,059,131,265,006.25
  5. Step 5: Solve for x
    x = 189,059,131,265,006.25/6,420,403.50
  6. Step 6: Final answer
    x = 29,446,612.08

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.