Home / 20,007,321.21-27,609,742.62-11,305,306.53

Finding the Fourth Proportional to 20,007,321.21, 27,609,742.62 and 11,305,306.53

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Solution

The fourth proportional to 20,007,321.21, 27,609,742.62 and 11,305,306.53 is: 15,601,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007,321.21 : 27,609,742.62 = 11,305,306.53 : x
  2. Step 2: Convert to fraction form
    20,007,321.21/27,609,742.62 = 11,305,306.53/x
  3. Step 3: Cross multiply
    20,007,321.21x = 27,609,742.62 × 11,305,306.53
  4. Step 4: Simplify right side
    20,007,321.21x = 312,136,603,533,505.31
  5. Step 5: Solve for x
    x = 312,136,603,533,505.31/20,007,321.21
  6. Step 6: Final answer
    x = 15,601,119.22

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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.