Home / 15,145,481.28-20,900,790.54-8,269,816.80

Finding the Fourth Proportional to 15,145,481.28, 20,900,790.54 and 8,269,816.80

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Solution

The fourth proportional to 15,145,481.28, 20,900,790.54 and 8,269,816.80 is: 11,412,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145,481.28 : 20,900,790.54 = 8,269,816.80 : x
  2. Step 2: Convert to fraction form
    15,145,481.28/20,900,790.54 = 8,269,816.80/x
  3. Step 3: Cross multiply
    15,145,481.28x = 20,900,790.54 × 8,269,816.80
  4. Step 4: Simplify right side
    15,145,481.28x = 172,845,708,740,973.06
  5. Step 5: Solve for x
    x = 172,845,708,740,973.06/15,145,481.28
  6. Step 6: Final answer
    x = 11,412,361.58

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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.