Home / 12,921,295.50-20,017,212.75

Finding the Third Proportional to 12,921,295.50 and 20,017,212.75

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Solution

The third proportional to 12,921,295.50 and 20,017,212.75 is: 31,009,956.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,295.50 : 20,017,212.75 = 20,017,212.75 : x
  2. Step 2: Convert to fraction form
    12,921,295.50/20,017,212.75 = 20,017,212.75/x
  3. Step 3: Cross multiply
    12,921,295.50x = 20,017,212.75 × 20,017,212.75
  4. Step 4: Simplify right side
    12,921,295.50x = 400,688,806,278,762.56
  5. Step 5: Solve for x
    x = 400,688,806,278,762.56/12,921,295.50
  6. Step 6: Final answer
    x = 31,009,956.11

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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.