Home / 303,908,405.88-419,347,221.12-171,701,163.96

Finding the Fourth Proportional to 303,908,405.88, 419,347,221.12 and 171,701,163.96

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Solution

The fourth proportional to 303,908,405.88, 419,347,221.12 and 171,701,163.96 is: 236,921,403.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,908,405.88 : 419,347,221.12 = 171,701,163.96 : x
  2. Step 2: Convert to fraction form
    303,908,405.88/419,347,221.12 = 171,701,163.96/x
  3. Step 3: Cross multiply
    303,908,405.88x = 419,347,221.12 × 171,701,163.96
  4. Step 4: Simplify right side
    303,908,405.88x = 72,002,405,969,695,496
  5. Step 5: Solve for x
    x = 72,002,405,969,695,496/303,908,405.88
  6. Step 6: Final answer
    x = 236,921,403.21

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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.