Home / 256,571,943.14-354,107,618.25-201,978,617.06

Finding the Fourth Proportional to 256,571,943.14, 354,107,618.25 and 201,978,617.06

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Solution

The fourth proportional to 256,571,943.14, 354,107,618.25 and 201,978,617.06 is: 278,760,670.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,571,943.14 : 354,107,618.25 = 201,978,617.06 : x
  2. Step 2: Convert to fraction form
    256,571,943.14/354,107,618.25 = 201,978,617.06/x
  3. Step 3: Cross multiply
    256,571,943.14x = 354,107,618.25 × 201,978,617.06
  4. Step 4: Simplify right side
    256,571,943.14x = 71,522,167,024,545,416
  5. Step 5: Solve for x
    x = 71,522,167,024,545,416/256,571,943.14
  6. Step 6: Final answer
    x = 278,760,670.98

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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.