Home / 11,902,991.38-16,396,972.77-8,630,189.62

Finding the Fourth Proportional to 11,902,991.38, 16,396,972.77 and 8,630,189.62

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Solution

The fourth proportional to 11,902,991.38, 16,396,972.77 and 8,630,189.62 is: 11,888,522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902,991.38 : 16,396,972.77 = 8,630,189.62 : x
  2. Step 2: Convert to fraction form
    11,902,991.38/16,396,972.77 = 8,630,189.62/x
  3. Step 3: Cross multiply
    11,902,991.38x = 16,396,972.77 × 8,630,189.62
  4. Step 4: Simplify right side
    11,902,991.38x = 141,508,984,199,076.62
  5. Step 5: Solve for x
    x = 141,508,984,199,076.62/11,902,991.38
  6. Step 6: Final answer
    x = 11,888,522.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.