Home / 20,458,853.92-28,233,079.50-11,291,496.64

Finding the Fourth Proportional to 20,458,853.92, 28,233,079.50 and 11,291,496.64

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Solution

The fourth proportional to 20,458,853.92, 28,233,079.50 and 11,291,496.64 is: 15,582,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,853.92 : 28,233,079.50 = 11,291,496.64 : x
  2. Step 2: Convert to fraction form
    20,458,853.92/28,233,079.50 = 11,291,496.64/x
  3. Step 3: Cross multiply
    20,458,853.92x = 28,233,079.50 × 11,291,496.64
  4. Step 4: Simplify right side
    20,458,853.92x = 318,793,722,311,102.88
  5. Step 5: Solve for x
    x = 318,793,722,311,102.88/20,458,853.92
  6. Step 6: Final answer
    x = 15,582,188.70

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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.