Home / 852,119,946.80-1,278,179,920.20-489,322,890.80

Finding the Fourth Proportional to 852,119,946.80, 1,278,179,920.20 and 489,322,890.80

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Solution

The fourth proportional to 852,119,946.80, 1,278,179,920.20 and 489,322,890.80 is: 733,984,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,119,946.80 : 1,278,179,920.20 = 489,322,890.80 : x
  2. Step 2: Convert to fraction form
    852,119,946.80/1,278,179,920.20 = 489,322,890.80/x
  3. Step 3: Cross multiply
    852,119,946.80x = 1,278,179,920.20 × 489,322,890.80
  4. Step 4: Simplify right side
    852,119,946.80x = 625,442,693,514,777,344
  5. Step 5: Solve for x
    x = 625,442,693,514,777,344/852,119,946.80
  6. Step 6: Final answer
    x = 733,984,336.20

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1.5x scale

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.