Home / 263,724,020.80-395,586,031.20-172,900,340.80

Finding the Fourth Proportional to 263,724,020.80, 395,586,031.20 and 172,900,340.80

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Solution

The fourth proportional to 263,724,020.80, 395,586,031.20 and 172,900,340.80 is: 259,350,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,724,020.80 : 395,586,031.20 = 172,900,340.80 : x
  2. Step 2: Convert to fraction form
    263,724,020.80/395,586,031.20 = 172,900,340.80/x
  3. Step 3: Cross multiply
    263,724,020.80x = 395,586,031.20 × 172,900,340.80
  4. Step 4: Simplify right side
    263,724,020.80x = 68,396,959,610,199,432
  5. Step 5: Solve for x
    x = 68,396,959,610,199,432/263,724,020.80
  6. Step 6: Final answer
    x = 259,350,511.20

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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.