Home / 256,914,735.56-354,542,667.06-139,440,052.43

Finding the Fourth Proportional to 256,914,735.56, 354,542,667.06 and 139,440,052.43

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Solution

The fourth proportional to 256,914,735.56, 354,542,667.06 and 139,440,052.43 is: 192,427,452.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,914,735.56 : 354,542,667.06 = 139,440,052.43 : x
  2. Step 2: Convert to fraction form
    256,914,735.56/354,542,667.06 = 139,440,052.43/x
  3. Step 3: Cross multiply
    256,914,735.56x = 354,542,667.06 × 139,440,052.43
  4. Step 4: Simplify right side
    256,914,735.56x = 49,437,448,081,745,728
  5. Step 5: Solve for x
    x = 49,437,448,081,745,728/256,914,735.56
  6. Step 6: Final answer
    x = 192,427,452.54

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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.