Home / 320,379,352.22-480,587,527.42-123,643,786.34

Finding the Fourth Proportional to 320,379,352.22, 480,587,527.42 and 123,643,786.34

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Solution

The fourth proportional to 320,379,352.22, 480,587,527.42 and 123,643,786.34 is: 185,472,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,379,352.22 : 480,587,527.42 = 123,643,786.34 : x
  2. Step 2: Convert to fraction form
    320,379,352.22/480,587,527.42 = 123,643,786.34/x
  3. Step 3: Cross multiply
    320,379,352.22x = 480,587,527.42 × 123,643,786.34
  4. Step 4: Simplify right side
    320,379,352.22x = 59,421,661,558,879,736
  5. Step 5: Solve for x
    x = 59,421,661,558,879,736/320,379,352.22
  6. Step 6: Final answer
    x = 185,472,818.85

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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.