Home / 398,538,451.44-549,981,533.52-222,326,305.92

Finding the Fourth Proportional to 398,538,451.44, 549,981,533.52 and 222,326,305.92

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Solution

The fourth proportional to 398,538,451.44, 549,981,533.52 and 222,326,305.92 is: 306,809,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,538,451.44 : 549,981,533.52 = 222,326,305.92 : x
  2. Step 2: Convert to fraction form
    398,538,451.44/549,981,533.52 = 222,326,305.92/x
  3. Step 3: Cross multiply
    398,538,451.44x = 549,981,533.52 × 222,326,305.92
  4. Step 4: Simplify right side
    398,538,451.44x = 122,275,362,671,718,240
  5. Step 5: Solve for x
    x = 122,275,362,671,718,240/398,538,451.44
  6. Step 6: Final answer
    x = 306,809,448.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.