Home / 13,692,231.42-20,505,743.16-7,922,806.21

Finding the Fourth Proportional to 13,692,231.42, 20,505,743.16 and 7,922,806.21

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Solution

The fourth proportional to 13,692,231.42, 20,505,743.16 and 7,922,806.21 is: 11,865,343.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692,231.42 : 20,505,743.16 = 7,922,806.21 : x
  2. Step 2: Convert to fraction form
    13,692,231.42/20,505,743.16 = 7,922,806.21/x
  3. Step 3: Cross multiply
    13,692,231.42x = 20,505,743.16 × 7,922,806.21
  4. Step 4: Simplify right side
    13,692,231.42x = 162,463,029,248,713.03
  5. Step 5: Solve for x
    x = 162,463,029,248,713.03/13,692,231.42
  6. Step 6: Final answer
    x = 11,865,343.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.