Home / 21,456,145.20-32,221,542.60-11,378,449.20

Finding the Fourth Proportional to 21,456,145.20, 32,221,542.60 and 11,378,449.20

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Solution

The fourth proportional to 21,456,145.20, 32,221,542.60 and 11,378,449.20 is: 17,087,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,145.20 : 32,221,542.60 = 11,378,449.20 : x
  2. Step 2: Convert to fraction form
    21,456,145.20/32,221,542.60 = 11,378,449.20/x
  3. Step 3: Cross multiply
    21,456,145.20x = 32,221,542.60 × 11,378,449.20
  4. Step 4: Simplify right side
    21,456,145.20x = 366,631,185,619,735.94
  5. Step 5: Solve for x
    x = 366,631,185,619,735.94/21,456,145.20
  6. Step 6: Final answer
    x = 17,087,467.59

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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.