Home / 852,119,747.30-1,278,179,620.95-489,322,691.30

Finding the Fourth Proportional to 852,119,747.30, 1,278,179,620.95 and 489,322,691.30

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Solution

The fourth proportional to 852,119,747.30, 1,278,179,620.95 and 489,322,691.30 is: 733,984,036.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,119,747.30 : 1,278,179,620.95 = 489,322,691.30 : x
  2. Step 2: Convert to fraction form
    852,119,747.30/1,278,179,620.95 = 489,322,691.30/x
  3. Step 3: Cross multiply
    852,119,747.30x = 1,278,179,620.95 × 489,322,691.30
  4. Step 4: Simplify right side
    852,119,747.30x = 625,442,292,088,067,840
  5. Step 5: Solve for x
    x = 625,442,292,088,067,840/852,119,747.30
  6. Step 6: Final answer
    x = 733,984,036.95

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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.