Home / 398,557,654.77-550,009,797.99-222,345,651

Finding the Fourth Proportional to 398,557,654.77, 550,009,797.99 and 222,345,651

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Solution

The fourth proportional to 398,557,654.77, 550,009,797.99 and 222,345,651 is: 306,837,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,557,654.77 : 550,009,797.99 = 222,345,651 : x
  2. Step 2: Convert to fraction form
    398,557,654.77/550,009,797.99 = 222,345,651/x
  3. Step 3: Cross multiply
    398,557,654.77x = 550,009,797.99 × 222,345,651
  4. Step 4: Simplify right side
    398,557,654.77x = 122,292,286,590,465,040
  5. Step 5: Solve for x
    x = 122,292,286,590,465,040/398,557,654.77
  6. Step 6: Final answer
    x = 306,837,129.15

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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.