Home / 15,196,139.96-20,970,678.22-8,321,057.56

Finding the Fourth Proportional to 15,196,139.96, 20,970,678.22 and 8,321,057.56

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Solution

The fourth proportional to 15,196,139.96, 20,970,678.22 and 8,321,057.56 is: 11,483,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196,139.96 : 20,970,678.22 = 8,321,057.56 : x
  2. Step 2: Convert to fraction form
    15,196,139.96/20,970,678.22 = 8,321,057.56/x
  3. Step 3: Cross multiply
    15,196,139.96x = 20,970,678.22 × 8,321,057.56
  4. Step 4: Simplify right side
    15,196,139.96x = 174,498,220,540,858.31
  5. Step 5: Solve for x
    x = 174,498,220,540,858.31/15,196,139.96
  6. Step 6: Final answer
    x = 11,483,062.21

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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.