Home / 398,584,275.18-550,046,642.22-222,372,297.87

Finding the Fourth Proportional to 398,584,275.18, 550,046,642.22 and 222,372,297.87

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Solution

The fourth proportional to 398,584,275.18, 550,046,642.22 and 222,372,297.87 is: 306,873,962.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,584,275.18 : 550,046,642.22 = 222,372,297.87 : x
  2. Step 2: Convert to fraction form
    398,584,275.18/550,046,642.22 = 222,372,297.87/x
  3. Step 3: Cross multiply
    398,584,275.18x = 550,046,642.22 × 222,372,297.87
  4. Step 4: Simplify right side
    398,584,275.18x = 122,315,135,766,139,168
  5. Step 5: Solve for x
    x = 122,315,135,766,139,168/398,584,275.18
  6. Step 6: Final answer
    x = 306,873,962.13

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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.