Home / 261,272,661.91-392,151,093.77-131,970,901.48

Finding the Fourth Proportional to 261,272,661.91, 392,151,093.77 and 131,970,901.48

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Solution

The fourth proportional to 261,272,661.91, 392,151,093.77 and 131,970,901.48 is: 198,078,639.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,272,661.91 : 392,151,093.77 = 131,970,901.48 : x
  2. Step 2: Convert to fraction form
    261,272,661.91/392,151,093.77 = 131,970,901.48/x
  3. Step 3: Cross multiply
    261,272,661.91x = 392,151,093.77 × 131,970,901.48
  4. Step 4: Simplify right side
    261,272,661.91x = 51,752,533,361,194,912
  5. Step 5: Solve for x
    x = 51,752,533,361,194,912/261,272,661.91
  6. Step 6: Final answer
    x = 198,078,639.31

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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.