Home / 289,785,587.04-399,867,754.72-195,904,004.80

Finding the Fourth Proportional to 289,785,587.04, 399,867,754.72 and 195,904,004.80

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Solution

The fourth proportional to 289,785,587.04, 399,867,754.72 and 195,904,004.80 is: 270,322,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,785,587.04 : 399,867,754.72 = 195,904,004.80 : x
  2. Step 2: Convert to fraction form
    289,785,587.04/399,867,754.72 = 195,904,004.80/x
  3. Step 3: Cross multiply
    289,785,587.04x = 399,867,754.72 × 195,904,004.80
  4. Step 4: Simplify right side
    289,785,587.04x = 78,335,694,540,032,112
  5. Step 5: Solve for x
    x = 78,335,694,540,032,112/289,785,587.04
  6. Step 6: Final answer
    x = 270,322,949.25

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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.