Home / 20,458,854.92-28,233,080.88-11,291,497.64

Finding the Fourth Proportional to 20,458,854.92, 28,233,080.88 and 11,291,497.64

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Solution

The fourth proportional to 20,458,854.92, 28,233,080.88 and 11,291,497.64 is: 15,582,190.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,854.92 : 28,233,080.88 = 11,291,497.64 : x
  2. Step 2: Convert to fraction form
    20,458,854.92/28,233,080.88 = 11,291,497.64/x
  3. Step 3: Cross multiply
    20,458,854.92x = 28,233,080.88 × 11,291,497.64
  4. Step 4: Simplify right side
    20,458,854.92x = 318,793,766,126,449.12
  5. Step 5: Solve for x
    x = 318,793,766,126,449.12/20,458,854.92
  6. Step 6: Final answer
    x = 15,582,190.08

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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.