Home / 20,426,738.76-28,188,051.11-11,134,104.38

Finding the Fourth Proportional to 20,426,738.76, 28,188,051.11 and 11,134,104.38

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Solution

The fourth proportional to 20,426,738.76, 28,188,051.11 and 11,134,104.38 is: 15,364,601.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426,738.76 : 28,188,051.11 = 11,134,104.38 : x
  2. Step 2: Convert to fraction form
    20,426,738.76/28,188,051.11 = 11,134,104.38/x
  3. Step 3: Cross multiply
    20,426,738.76x = 28,188,051.11 × 11,134,104.38
  4. Step 4: Simplify right side
    20,426,738.76x = 313,848,703,186,574.62
  5. Step 5: Solve for x
    x = 313,848,703,186,574.62/20,426,738.76
  6. Step 6: Final answer
    x = 15,364,601.61

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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.