Home / 30,311,364.30-45,467,046.45-18,218,129.10

Finding the Fourth Proportional to 30,311,364.30, 45,467,046.45 and 18,218,129.10

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Solution

The fourth proportional to 30,311,364.30, 45,467,046.45 and 18,218,129.10 is: 27,327,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,311,364.30 : 45,467,046.45 = 18,218,129.10 : x
  2. Step 2: Convert to fraction form
    30,311,364.30/45,467,046.45 = 18,218,129.10/x
  3. Step 3: Cross multiply
    30,311,364.30x = 45,467,046.45 × 18,218,129.10
  4. Step 4: Simplify right side
    30,311,364.30x = 828,324,522,021,796.88
  5. Step 5: Solve for x
    x = 828,324,522,021,796.88/30,311,364.30
  6. Step 6: Final answer
    x = 27,327,193.65

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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.