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Finding the Fourth Proportional to 484,876,446.80, 727,771,315.80 and 255,010,499.60

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Solution

The fourth proportional to 484,876,446.80, 727,771,315.80 and 255,010,499.60 is: 382,755,912.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,876,446.80 : 727,771,315.80 = 255,010,499.60 : x
  2. Step 2: Convert to fraction form
    484,876,446.80/727,771,315.80 = 255,010,499.60/x
  3. Step 3: Cross multiply
    484,876,446.80x = 727,771,315.80 × 255,010,499.60
  4. Step 4: Simplify right side
    484,876,446.80x = 185,589,326,836,707,360
  5. Step 5: Solve for x
    x = 185,589,326,836,707,360/484,876,446.80
  6. Step 6: Final answer
    x = 382,755,912.48

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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.