Home / 398,538,460.44-549,981,545.94-222,326,314.92

Finding the Fourth Proportional to 398,538,460.44, 549,981,545.94 and 222,326,314.92

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Solution

The fourth proportional to 398,538,460.44, 549,981,545.94 and 222,326,314.92 is: 306,809,461.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,538,460.44 : 549,981,545.94 = 222,326,314.92 : x
  2. Step 2: Convert to fraction form
    398,538,460.44/549,981,545.94 = 222,326,314.92/x
  3. Step 3: Cross multiply
    398,538,460.44x = 549,981,545.94 × 222,326,314.92
  4. Step 4: Simplify right side
    398,538,460.44x = 122,275,370,382,844,896
  5. Step 5: Solve for x
    x = 122,275,370,382,844,896/398,538,460.44
  6. Step 6: Final answer
    x = 306,809,461.37

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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.