Home / 256,571,936.64-354,107,609.28-201,978,610.56

Finding the Fourth Proportional to 256,571,936.64, 354,107,609.28 and 201,978,610.56

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Solution

The fourth proportional to 256,571,936.64, 354,107,609.28 and 201,978,610.56 is: 278,760,662.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,571,936.64 : 354,107,609.28 = 201,978,610.56 : x
  2. Step 2: Convert to fraction form
    256,571,936.64/354,107,609.28 = 201,978,610.56/x
  3. Step 3: Cross multiply
    256,571,936.64x = 354,107,609.28 × 201,978,610.56
  4. Step 4: Simplify right side
    256,571,936.64x = 71,522,162,911,097,760
  5. Step 5: Solve for x
    x = 71,522,162,911,097,760/256,571,936.64
  6. Step 6: Final answer
    x = 278,760,662.01

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1.5x scale

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.