Home / 20,079,911.40-27,709,217.20-11,378,188.32

Finding the Fourth Proportional to 20,079,911.40, 27,709,217.20 and 11,378,188.32

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Solution

The fourth proportional to 20,079,911.40, 27,709,217.20 and 11,378,188.32 is: 15,701,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079,911.40 : 27,709,217.20 = 11,378,188.32 : x
  2. Step 2: Convert to fraction form
    20,079,911.40/27,709,217.20 = 11,378,188.32/x
  3. Step 3: Cross multiply
    20,079,911.40x = 27,709,217.20 × 11,378,188.32
  4. Step 4: Simplify right side
    20,079,911.40x = 315,280,691,501,383.12
  5. Step 5: Solve for x
    x = 315,280,691,501,383.12/20,079,911.40
  6. Step 6: Final answer
    x = 15,701,298.94

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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.