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Finding the Third Proportional to 20,203,615.50 and 30,809,845.50

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Solution

The third proportional to 20,203,615.50 and 30,809,845.50 is: 46,983,995.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203,615.50 : 30,809,845.50 = 30,809,845.50 : x
  2. Step 2: Convert to fraction form
    20,203,615.50/30,809,845.50 = 30,809,845.50/x
  3. Step 3: Cross multiply
    20,203,615.50x = 30,809,845.50 × 30,809,845.50
  4. Step 4: Simplify right side
    20,203,615.50x = 949,246,579,733,870.25
  5. Step 5: Solve for x
    x = 949,246,579,733,870.25/20,203,615.50
  6. Step 6: Final answer
    x = 46,983,995.50

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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.