Home / 852,382,003.70-1,278,573,005.55-393,216,979.70

Finding the Fourth Proportional to 852,382,003.70, 1,278,573,005.55 and 393,216,979.70

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Solution

The fourth proportional to 852,382,003.70, 1,278,573,005.55 and 393,216,979.70 is: 589,825,469.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,382,003.70 : 1,278,573,005.55 = 393,216,979.70 : x
  2. Step 2: Convert to fraction form
    852,382,003.70/1,278,573,005.55 = 393,216,979.70/x
  3. Step 3: Cross multiply
    852,382,003.70x = 1,278,573,005.55 × 393,216,979.70
  4. Step 4: Simplify right side
    852,382,003.70x = 502,756,615,568,322,304
  5. Step 5: Solve for x
    x = 502,756,615,568,322,304/852,382,003.70
  6. Step 6: Final answer
    x = 589,825,469.55

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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.