Home / 20,460,679.14-28,231,522.20-11,757,170.19

Finding the Fourth Proportional to 20,460,679.14, 28,231,522.20 and 11,757,170.19

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Solution

The fourth proportional to 20,460,679.14, 28,231,522.20 and 11,757,170.19 is: 16,222,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460,679.14 : 28,231,522.20 = 11,757,170.19 : x
  2. Step 2: Convert to fraction form
    20,460,679.14/28,231,522.20 = 11,757,170.19/x
  3. Step 3: Cross multiply
    20,460,679.14x = 28,231,522.20 × 11,757,170.19
  4. Step 4: Simplify right side
    20,460,679.14x = 331,922,811,228,163.19
  5. Step 5: Solve for x
    x = 331,922,811,228,163.19/20,460,679.14
  6. Step 6: Final answer
    x = 16,222,472.82

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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.