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Finding the Third Proportional to 8,391,565.38 and 12,958,045.38

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Solution

The third proportional to 8,391,565.38 and 12,958,045.38 is: 20,009,489.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391,565.38 : 12,958,045.38 = 12,958,045.38 : x
  2. Step 2: Convert to fraction form
    8,391,565.38/12,958,045.38 = 12,958,045.38/x
  3. Step 3: Cross multiply
    8,391,565.38x = 12,958,045.38 × 12,958,045.38
  4. Step 4: Simplify right side
    8,391,565.38x = 167,910,939,940,558.88
  5. Step 5: Solve for x
    x = 167,910,939,940,558.88/8,391,565.38
  6. Step 6: Final answer
    x = 20,009,489.58

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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.