Home / 13,145,620.44-18,140,621.37-7,344,445.80

Finding the Fourth Proportional to 13,145,620.44, 18,140,621.37 and 7,344,445.80

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Solution

The fourth proportional to 13,145,620.44, 18,140,621.37 and 7,344,445.80 is: 10,135,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,620.44 : 18,140,621.37 = 7,344,445.80 : x
  2. Step 2: Convert to fraction form
    13,145,620.44/18,140,621.37 = 7,344,445.80/x
  3. Step 3: Cross multiply
    13,145,620.44x = 18,140,621.37 × 7,344,445.80
  4. Step 4: Simplify right side
    13,145,620.44x = 133,232,810,430,286.75
  5. Step 5: Solve for x
    x = 133,232,810,430,286.75/13,145,620.44
  6. Step 6: Final answer
    x = 10,135,148.13

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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.