Home / 256,571,943.64-354,107,618.94-201,978,617.56

Finding the Fourth Proportional to 256,571,943.64, 354,107,618.94 and 201,978,617.56

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Solution

The fourth proportional to 256,571,943.64, 354,107,618.94 and 201,978,617.56 is: 278,760,671.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,571,943.64 : 354,107,618.94 = 201,978,617.56 : x
  2. Step 2: Convert to fraction form
    256,571,943.64/354,107,618.94 = 201,978,617.56/x
  3. Step 3: Cross multiply
    256,571,943.64x = 354,107,618.94 × 201,978,617.56
  4. Step 4: Simplify right side
    256,571,943.64x = 71,522,167,340,964,472
  5. Step 5: Solve for x
    x = 71,522,167,340,964,472/256,571,943.64
  6. Step 6: Final answer
    x = 278,760,671.67

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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.