Home / 256,955,728.20-354,605,156.82-139,485,873.48

Finding the Fourth Proportional to 256,955,728.20, 354,605,156.82 and 139,485,873.48

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Solution

The fourth proportional to 256,955,728.20, 354,605,156.82 and 139,485,873.48 is: 192,493,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,955,728.20 : 354,605,156.82 = 139,485,873.48 : x
  2. Step 2: Convert to fraction form
    256,955,728.20/354,605,156.82 = 139,485,873.48/x
  3. Step 3: Cross multiply
    256,955,728.20x = 354,605,156.82 × 139,485,873.48
  4. Step 4: Simplify right side
    256,955,728.20x = 49,462,410,039,550,072
  5. Step 5: Solve for x
    x = 49,462,410,039,550,072/256,955,728.20
  6. Step 6: Final answer
    x = 192,493,899.19

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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.