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Finding the Fourth Proportional to 312,794,385.30, 469,359,539.55 and 131,059,934.10

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Solution

The fourth proportional to 312,794,385.30, 469,359,539.55 and 131,059,934.10 is: 196,660,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,794,385.30 : 469,359,539.55 = 131,059,934.10 : x
  2. Step 2: Convert to fraction form
    312,794,385.30/469,359,539.55 = 131,059,934.10/x
  3. Step 3: Cross multiply
    312,794,385.30x = 469,359,539.55 × 131,059,934.10
  4. Step 4: Simplify right side
    312,794,385.30x = 61,514,230,322,629,344
  5. Step 5: Solve for x
    x = 61,514,230,322,629,344/312,794,385.30
  6. Step 6: Final answer
    x = 196,660,276.57

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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.