Home / 20,222,533.38-27,907,261.12-11,520,567.30

Finding the Fourth Proportional to 20,222,533.38, 27,907,261.12 and 11,520,567.30

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Solution

The fourth proportional to 20,222,533.38, 27,907,261.12 and 11,520,567.30 is: 15,898,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222,533.38 : 27,907,261.12 = 11,520,567.30 : x
  2. Step 2: Convert to fraction form
    20,222,533.38/27,907,261.12 = 11,520,567.30/x
  3. Step 3: Cross multiply
    20,222,533.38x = 27,907,261.12 × 11,520,567.30
  4. Step 4: Simplify right side
    20,222,533.38x = 321,507,479,891,633.44
  5. Step 5: Solve for x
    x = 321,507,479,891,633.44/20,222,533.38
  6. Step 6: Final answer
    x = 15,898,476.90

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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.