Home / 20,426,713.11-28,188,015.87-11,134,078.68

Finding the Fourth Proportional to 20,426,713.11, 28,188,015.87 and 11,134,078.68

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Solution

The fourth proportional to 20,426,713.11, 28,188,015.87 and 11,134,078.68 is: 15,364,566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426,713.11 : 28,188,015.87 = 11,134,078.68 : x
  2. Step 2: Convert to fraction form
    20,426,713.11/28,188,015.87 = 11,134,078.68/x
  3. Step 3: Cross multiply
    20,426,713.11x = 28,188,015.87 × 11,134,078.68
  4. Step 4: Simplify right side
    20,426,713.11x = 313,847,586,529,668.62
  5. Step 5: Solve for x
    x = 313,847,586,529,668.62/20,426,713.11
  6. Step 6: Final answer
    x = 15,364,566.23

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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.