Home / 320,543,975.80-480,656,749.92-102,165,902.20

Finding the Fourth Proportional to 320,543,975.80, 480,656,749.92 and 102,165,902.20

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Solution

The fourth proportional to 320,543,975.80, 480,656,749.92 and 102,165,902.20 is: 153,198,107.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,543,975.80 : 480,656,749.92 = 102,165,902.20 : x
  2. Step 2: Convert to fraction form
    320,543,975.80/480,656,749.92 = 102,165,902.20/x
  3. Step 3: Cross multiply
    320,543,975.80x = 480,656,749.92 × 102,165,902.20
  4. Step 4: Simplify right side
    320,543,975.80x = 49,106,730,504,096,584
  5. Step 5: Solve for x
    x = 49,106,730,504,096,584/320,543,975.80
  6. Step 6: Final answer
    x = 153,198,107.63

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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.