Home / 7,145,887.32-9,861,765.72-4,090,031.64

Finding the Fourth Proportional to 7,145,887.32, 9,861,765.72 and 4,090,031.64

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Solution

The fourth proportional to 7,145,887.32, 9,861,765.72 and 4,090,031.64 is: 5,644,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145,887.32 : 9,861,765.72 = 4,090,031.64 : x
  2. Step 2: Convert to fraction form
    7,145,887.32/9,861,765.72 = 4,090,031.64/x
  3. Step 3: Cross multiply
    7,145,887.32x = 9,861,765.72 × 4,090,031.64
  4. Step 4: Simplify right side
    7,145,887.32x = 40,334,933,821,067.38
  5. Step 5: Solve for x
    x = 40,334,933,821,067.38/7,145,887.32
  6. Step 6: Final answer
    x = 5,644,496.20

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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.