Home / 204,931,993.38-307,076,260.66-139,384,392.58

Finding the Fourth Proportional to 204,931,993.38, 307,076,260.66 and 139,384,392.58

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Solution

The fourth proportional to 204,931,993.38, 307,076,260.66 and 139,384,392.58 is: 208,857,764.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,931,993.38 : 307,076,260.66 = 139,384,392.58 : x
  2. Step 2: Convert to fraction form
    204,931,993.38/307,076,260.66 = 139,384,392.58/x
  3. Step 3: Cross multiply
    204,931,993.38x = 307,076,260.66 × 139,384,392.58
  4. Step 4: Simplify right side
    204,931,993.38x = 42,801,638,067,867,240
  5. Step 5: Solve for x
    x = 42,801,638,067,867,240/204,931,993.38
  6. Step 6: Final answer
    x = 208,857,764.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.