Home / 261,272,660.91-392,151,092.27-131,970,900.48

Finding the Fourth Proportional to 261,272,660.91, 392,151,092.27 and 131,970,900.48

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Solution

The fourth proportional to 261,272,660.91, 392,151,092.27 and 131,970,900.48 is: 198,078,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,272,660.91 : 392,151,092.27 = 131,970,900.48 : x
  2. Step 2: Convert to fraction form
    261,272,660.91/392,151,092.27 = 131,970,900.48/x
  3. Step 3: Cross multiply
    261,272,660.91x = 392,151,092.27 × 131,970,900.48
  4. Step 4: Simplify right side
    261,272,660.91x = 51,752,532,770,427,616
  5. Step 5: Solve for x
    x = 51,752,532,770,427,616/261,272,660.91
  6. Step 6: Final answer
    x = 198,078,637.81

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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.