Home / 12,378,171.20-18,567,486.03-4,291,410.38

Finding the Fourth Proportional to 12,378,171.20, 18,567,486.03 and 4,291,410.38

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Solution

The fourth proportional to 12,378,171.20, 18,567,486.03 and 4,291,410.38 is: 6,437,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,171.20 : 18,567,486.03 = 4,291,410.38 : x
  2. Step 2: Convert to fraction form
    12,378,171.20/18,567,486.03 = 4,291,410.38/x
  3. Step 3: Cross multiply
    12,378,171.20x = 18,567,486.03 × 4,291,410.38
  4. Step 4: Simplify right side
    12,378,171.20x = 79,680,702,279,647
  5. Step 5: Solve for x
    x = 79,680,702,279,647/12,378,171.20
  6. Step 6: Final answer
    x = 6,437,195.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.