Home / 398,641,175.38-550,126,342.74-222,436,597.42

Finding the Fourth Proportional to 398,641,175.38, 550,126,342.74 and 222,436,597.42

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Solution

The fourth proportional to 398,641,175.38, 550,126,342.74 and 222,436,597.42 is: 306,963,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,641,175.38 : 550,126,342.74 = 222,436,597.42 : x
  2. Step 2: Convert to fraction form
    398,641,175.38/550,126,342.74 = 222,436,597.42/x
  3. Step 3: Cross multiply
    398,641,175.38x = 550,126,342.74 × 222,436,597.42
  4. Step 4: Simplify right side
    398,641,175.38x = 122,368,231,830,194,320
  5. Step 5: Solve for x
    x = 122,368,231,830,194,320/398,641,175.38
  6. Step 6: Final answer
    x = 306,963,352.98

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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.