Home / 319,364,721.20-479,047,081.80-217,328,049.20

Finding the Fourth Proportional to 319,364,721.20, 479,047,081.80 and 217,328,049.20

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Solution

The fourth proportional to 319,364,721.20, 479,047,081.80 and 217,328,049.20 is: 325,992,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,364,721.20 : 479,047,081.80 = 217,328,049.20 : x
  2. Step 2: Convert to fraction form
    319,364,721.20/479,047,081.80 = 217,328,049.20/x
  3. Step 3: Cross multiply
    319,364,721.20x = 479,047,081.80 × 217,328,049.20
  4. Step 4: Simplify right side
    319,364,721.20x = 104,110,367,762,546,816
  5. Step 5: Solve for x
    x = 104,110,367,762,546,816/319,364,721.20
  6. Step 6: Final answer
    x = 325,992,073.80

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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.