Home / 20,886,435.68-31,321,998.88-7,236,056.48

Finding the Fourth Proportional to 20,886,435.68, 31,321,998.88 and 7,236,056.48

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Solution

The fourth proportional to 20,886,435.68, 31,321,998.88 and 7,236,056.48 is: 10,851,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886,435.68 : 31,321,998.88 = 7,236,056.48 : x
  2. Step 2: Convert to fraction form
    20,886,435.68/31,321,998.88 = 7,236,056.48/x
  3. Step 3: Cross multiply
    20,886,435.68x = 31,321,998.88 × 7,236,056.48
  4. Step 4: Simplify right side
    20,886,435.68x = 226,647,752,962,176.75
  5. Step 5: Solve for x
    x = 226,647,752,962,176.75/20,886,435.68
  6. Step 6: Final answer
    x = 10,851,432.79

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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.