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Finding the Fourth Proportional to 284,978,797.64, 427,744,618.52 and 137,530,123.48

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Solution

The fourth proportional to 284,978,797.64, 427,744,618.52 and 137,530,123.48 is: 206,428,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,978,797.64 : 427,744,618.52 = 137,530,123.48 : x
  2. Step 2: Convert to fraction form
    284,978,797.64/427,744,618.52 = 137,530,123.48/x
  3. Step 3: Cross multiply
    284,978,797.64x = 427,744,618.52 × 137,530,123.48
  4. Step 4: Simplify right side
    284,978,797.64x = 58,827,770,202,961,088
  5. Step 5: Solve for x
    x = 58,827,770,202,961,088/284,978,797.64
  6. Step 6: Final answer
    x = 206,428,585.88

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