Home / 20,643,209.64-30,947,493.42-9,126,817.56

Finding the Fourth Proportional to 20,643,209.64, 30,947,493.42 and 9,126,817.56

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Solution

The fourth proportional to 20,643,209.64, 30,947,493.42 and 9,126,817.56 is: 13,682,568.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,209.64 : 30,947,493.42 = 9,126,817.56 : x
  2. Step 2: Convert to fraction form
    20,643,209.64/30,947,493.42 = 9,126,817.56/x
  3. Step 3: Cross multiply
    20,643,209.64x = 30,947,493.42 × 9,126,817.56
  4. Step 4: Simplify right side
    20,643,209.64x = 282,452,126,383,640.50
  5. Step 5: Solve for x
    x = 282,452,126,383,640.50/20,643,209.64
  6. Step 6: Final answer
    x = 13,682,568.33

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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.