Home / 261,405,998.70-392,108,998.05-233,188,449.90

Finding the Fourth Proportional to 261,405,998.70, 392,108,998.05 and 233,188,449.90

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Solution

The fourth proportional to 261,405,998.70, 392,108,998.05 and 233,188,449.90 is: 349,782,674.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,405,998.70 : 392,108,998.05 = 233,188,449.90 : x
  2. Step 2: Convert to fraction form
    261,405,998.70/392,108,998.05 = 233,188,449.90/x
  3. Step 3: Cross multiply
    261,405,998.70x = 392,108,998.05 × 233,188,449.90
  4. Step 4: Simplify right side
    261,405,998.70x = 91,435,289,447,121,632
  5. Step 5: Solve for x
    x = 91,435,289,447,121,632/261,405,998.70
  6. Step 6: Final answer
    x = 349,782,674.85

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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.