Home / 256,131,505.56-353,461,591.80-138,656,832

Finding the Fourth Proportional to 256,131,505.56, 353,461,591.80 and 138,656,832

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Solution

The fourth proportional to 256,131,505.56, 353,461,591.80 and 138,656,832 is: 191,346,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,131,505.56 : 353,461,591.80 = 138,656,832 : x
  2. Step 2: Convert to fraction form
    256,131,505.56/353,461,591.80 = 138,656,832/x
  3. Step 3: Cross multiply
    256,131,505.56x = 353,461,591.80 × 138,656,832
  4. Step 4: Simplify right side
    256,131,505.56x = 49,009,864,552,665,176
  5. Step 5: Solve for x
    x = 49,009,864,552,665,176/256,131,505.56
  6. Step 6: Final answer
    x = 191,346,489.94

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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.