Home / 20,458,852.92-28,233,078.12-11,291,495.64

Finding the Fourth Proportional to 20,458,852.92, 28,233,078.12 and 11,291,495.64

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Solution

The fourth proportional to 20,458,852.92, 28,233,078.12 and 11,291,495.64 is: 15,582,187.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,852.92 : 28,233,078.12 = 11,291,495.64 : x
  2. Step 2: Convert to fraction form
    20,458,852.92/28,233,078.12 = 11,291,495.64/x
  3. Step 3: Cross multiply
    20,458,852.92x = 28,233,078.12 × 11,291,495.64
  4. Step 4: Simplify right side
    20,458,852.92x = 318,793,678,495,759.44
  5. Step 5: Solve for x
    x = 318,793,678,495,759.44/20,458,852.92
  6. Step 6: Final answer
    x = 15,582,187.32

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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.