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Finding the Third Proportional to 8,391,559.75 and 12,958,036.44

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Solution

The third proportional to 8,391,559.75 and 12,958,036.44 is: 20,009,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391,559.75 : 12,958,036.44 = 12,958,036.44 : x
  2. Step 2: Convert to fraction form
    8,391,559.75/12,958,036.44 = 12,958,036.44/x
  3. Step 3: Cross multiply
    8,391,559.75x = 12,958,036.44 × 12,958,036.44
  4. Step 4: Simplify right side
    8,391,559.75x = 167,910,708,315,577.69
  5. Step 5: Solve for x
    x = 167,910,708,315,577.69/8,391,559.75
  6. Step 6: Final answer
    x = 20,009,475.39

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.