Home / 20,348,468.92-28,080,880.63-11,181,702.16

Finding the Fourth Proportional to 20,348,468.92, 28,080,880.63 and 11,181,702.16

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Solution

The fourth proportional to 20,348,468.92, 28,080,880.63 and 11,181,702.16 is: 15,430,745.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,468.92 : 28,080,880.63 = 11,181,702.16 : x
  2. Step 2: Convert to fraction form
    20,348,468.92/28,080,880.63 = 11,181,702.16/x
  3. Step 3: Cross multiply
    20,348,468.92x = 28,080,880.63 × 11,181,702.16
  4. Step 4: Simplify right side
    20,348,468.92x = 313,992,043,595,173.12
  5. Step 5: Solve for x
    x = 313,992,043,595,173.12/20,348,468.92
  6. Step 6: Final answer
    x = 15,430,745.42

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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.