Home / 20,290,845.94-28,003,138.87-11,125,260.16

Finding the Fourth Proportional to 20,290,845.94, 28,003,138.87 and 11,125,260.16

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Solution

The fourth proportional to 20,290,845.94, 28,003,138.87 and 11,125,260.16 is: 15,353,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290,845.94 : 28,003,138.87 = 11,125,260.16 : x
  2. Step 2: Convert to fraction form
    20,290,845.94/28,003,138.87 = 11,125,260.16/x
  3. Step 3: Cross multiply
    20,290,845.94x = 28,003,138.87 × 11,125,260.16
  4. Step 4: Simplify right side
    20,290,845.94x = 311,542,205,225,358.44
  5. Step 5: Solve for x
    x = 311,542,205,225,358.44/20,290,845.94
  6. Step 6: Final answer
    x = 15,353,830.30

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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.