Home / 261,405,983.20-392,108,974.80-233,188,434.40

Finding the Fourth Proportional to 261,405,983.20, 392,108,974.80 and 233,188,434.40

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Solution

The fourth proportional to 261,405,983.20, 392,108,974.80 and 233,188,434.40 is: 349,782,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,405,983.20 : 392,108,974.80 = 233,188,434.40 : x
  2. Step 2: Convert to fraction form
    261,405,983.20/392,108,974.80 = 233,188,434.40/x
  3. Step 3: Cross multiply
    261,405,983.20x = 392,108,974.80 × 233,188,434.40
  4. Step 4: Simplify right side
    261,405,983.20x = 91,435,277,947,801,056
  5. Step 5: Solve for x
    x = 91,435,277,947,801,056/261,405,983.20
  6. Step 6: Final answer
    x = 349,782,651.60

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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.