Home / 852,382,003.20-1,278,573,004.80-393,216,979.20

Finding the Fourth Proportional to 852,382,003.20, 1,278,573,004.80 and 393,216,979.20

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Solution

The fourth proportional to 852,382,003.20, 1,278,573,004.80 and 393,216,979.20 is: 589,825,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,382,003.20 : 1,278,573,004.80 = 393,216,979.20 : x
  2. Step 2: Convert to fraction form
    852,382,003.20/1,278,573,004.80 = 393,216,979.20/x
  3. Step 3: Cross multiply
    852,382,003.20x = 1,278,573,004.80 × 393,216,979.20
  4. Step 4: Simplify right side
    852,382,003.20x = 502,756,614,634,123,072
  5. Step 5: Solve for x
    x = 502,756,614,634,123,072/852,382,003.20
  6. Step 6: Final answer
    x = 589,825,468.80

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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.