Home / 261,405,985.20-392,108,977.80-233,188,436.40

Finding the Fourth Proportional to 261,405,985.20, 392,108,977.80 and 233,188,436.40

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Solution

The fourth proportional to 261,405,985.20, 392,108,977.80 and 233,188,436.40 is: 349,782,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,405,985.20 : 392,108,977.80 = 233,188,436.40 : x
  2. Step 2: Convert to fraction form
    261,405,985.20/392,108,977.80 = 233,188,436.40/x
  3. Step 3: Cross multiply
    261,405,985.20x = 392,108,977.80 × 233,188,436.40
  4. Step 4: Simplify right side
    261,405,985.20x = 91,435,279,431,584,320
  5. Step 5: Solve for x
    x = 91,435,279,431,584,320/261,405,985.20
  6. Step 6: Final answer
    x = 349,782,654.60

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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.