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Finding the Third Proportional to 8,391,556.38 and 12,958,030.94

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Solution

The third proportional to 8,391,556.38 and 12,958,030.94 is: 20,009,466.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391,556.38 : 12,958,030.94 = 12,958,030.94 : x
  2. Step 2: Convert to fraction form
    8,391,556.38/12,958,030.94 = 12,958,030.94/x
  3. Step 3: Cross multiply
    8,391,556.38x = 12,958,030.94 × 12,958,030.94
  4. Step 4: Simplify right side
    8,391,556.38x = 167,910,565,777,207.12
  5. Step 5: Solve for x
    x = 167,910,565,777,207.12/8,391,556.38
  6. Step 6: Final answer
    x = 20,009,466.45

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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.