Home / 20,979,765.18-31,473,010.77-8,851,015.18

Finding the Fourth Proportional to 20,979,765.18, 31,473,010.77 and 8,851,015.18

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Solution

The fourth proportional to 20,979,765.18, 31,473,010.77 and 8,851,015.18 is: 13,277,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,979,765.18 : 31,473,010.77 = 8,851,015.18 : x
  2. Step 2: Convert to fraction form
    20,979,765.18/31,473,010.77 = 8,851,015.18/x
  3. Step 3: Cross multiply
    20,979,765.18x = 31,473,010.77 × 8,851,015.18
  4. Step 4: Simplify right side
    20,979,765.18x = 278,568,096,085,573.47
  5. Step 5: Solve for x
    x = 278,568,096,085,573.47/20,979,765.18
  6. Step 6: Final answer
    x = 13,277,941.56

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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.