Home / 398,728,400.80-597,148,882.80-270,382,698.40

Finding the Fourth Proportional to 398,728,400.80, 597,148,882.80 and 270,382,698.40

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Solution

The fourth proportional to 398,728,400.80, 597,148,882.80 and 270,382,698.40 is: 404,934,100.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,728,400.80 : 597,148,882.80 = 270,382,698.40 : x
  2. Step 2: Convert to fraction form
    398,728,400.80/597,148,882.80 = 270,382,698.40/x
  3. Step 3: Cross multiply
    398,728,400.80x = 597,148,882.80 × 270,382,698.40
  4. Step 4: Simplify right side
    398,728,400.80x = 161,458,726,278,009,312
  5. Step 5: Solve for x
    x = 161,458,726,278,009,312/398,728,400.80
  6. Step 6: Final answer
    x = 404,934,100.39

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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.