Home / 289,785,573.75-399,867,736.46-195,903,991.47

Finding the Fourth Proportional to 289,785,573.75, 399,867,736.46 and 195,903,991.47

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Solution

The fourth proportional to 289,785,573.75, 399,867,736.46 and 195,903,991.47 is: 270,322,930.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,785,573.75 : 399,867,736.46 = 195,903,991.47 : x
  2. Step 2: Convert to fraction form
    289,785,573.75/399,867,736.46 = 195,903,991.47/x
  3. Step 3: Cross multiply
    289,785,573.75x = 399,867,736.46 × 195,903,991.47
  4. Step 4: Simplify right side
    289,785,573.75x = 78,335,685,631,608,528
  5. Step 5: Solve for x
    x = 78,335,685,631,608,528/289,785,573.75
  6. Step 6: Final answer
    x = 270,322,930.91

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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.