Home / 20,815,539.96-28,725,785.23-11,396,173.80

Finding the Fourth Proportional to 20,815,539.96, 28,725,785.23 and 11,396,173.80

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Solution

The fourth proportional to 20,815,539.96, 28,725,785.23 and 11,396,173.80 is: 15,726,906.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,815,539.96 : 28,725,785.23 = 11,396,173.80 : x
  2. Step 2: Convert to fraction form
    20,815,539.96/28,725,785.23 = 11,396,173.80/x
  3. Step 3: Cross multiply
    20,815,539.96x = 28,725,785.23 × 11,396,173.80
  4. Step 4: Simplify right side
    20,815,539.96x = 327,364,041,101,784.25
  5. Step 5: Solve for x
    x = 327,364,041,101,784.25/20,815,539.96
  6. Step 6: Final answer
    x = 15,726,906.04

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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.