Home / 278,393,934.02-416,954,795.06-132,929,379.86

Finding the Fourth Proportional to 278,393,934.02, 416,954,795.06 and 132,929,379.86

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Solution

The fourth proportional to 278,393,934.02, 416,954,795.06 and 132,929,379.86 is: 199,090,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,393,934.02 : 416,954,795.06 = 132,929,379.86 : x
  2. Step 2: Convert to fraction form
    278,393,934.02/416,954,795.06 = 132,929,379.86/x
  3. Step 3: Cross multiply
    278,393,934.02x = 416,954,795.06 × 132,929,379.86
  4. Step 4: Simplify right side
    278,393,934.02x = 55,425,542,335,226,744
  5. Step 5: Solve for x
    x = 55,425,542,335,226,744/278,393,934.02
  6. Step 6: Final answer
    x = 199,090,337.69

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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.