Home / 721,810,177.20-1,082,715,265.80-261,763,354.80

Finding the Fourth Proportional to 721,810,177.20, 1,082,715,265.80 and 261,763,354.80

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Solution

The fourth proportional to 721,810,177.20, 1,082,715,265.80 and 261,763,354.80 is: 392,645,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,810,177.20 : 1,082,715,265.80 = 261,763,354.80 : x
  2. Step 2: Convert to fraction form
    721,810,177.20/1,082,715,265.80 = 261,763,354.80/x
  3. Step 3: Cross multiply
    721,810,177.20x = 1,082,715,265.80 × 261,763,354.80
  4. Step 4: Simplify right side
    721,810,177.20x = 283,415,180,268,981,696
  5. Step 5: Solve for x
    x = 283,415,180,268,981,696/721,810,177.20
  6. Step 6: Final answer
    x = 392,645,032.20

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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.