Home / 256,734,100.38-354,292,695.24-139,259,288.76

Finding the Fourth Proportional to 256,734,100.38, 354,292,695.24 and 139,259,288.76

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Solution

The fourth proportional to 256,734,100.38, 354,292,695.24 and 139,259,288.76 is: 192,177,621.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,734,100.38 : 354,292,695.24 = 139,259,288.76 : x
  2. Step 2: Convert to fraction form
    256,734,100.38/354,292,695.24 = 139,259,288.76/x
  3. Step 3: Cross multiply
    256,734,100.38x = 354,292,695.24 × 139,259,288.76
  4. Step 4: Simplify right side
    256,734,100.38x = 49,338,548,751,985,832
  5. Step 5: Solve for x
    x = 49,338,548,751,985,832/256,734,100.38
  6. Step 6: Final answer
    x = 192,177,621.43

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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.