Home / 166,861,011.49-230,247,028.04-91,487,505.78

Finding the Fourth Proportional to 166,861,011.49, 230,247,028.04 and 91,487,505.78

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Solution

The fourth proportional to 166,861,011.49, 230,247,028.04 and 91,487,505.78 is: 126,241,151.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,861,011.49 : 230,247,028.04 = 91,487,505.78 : x
  2. Step 2: Convert to fraction form
    166,861,011.49/230,247,028.04 = 91,487,505.78/x
  3. Step 3: Cross multiply
    166,861,011.49x = 230,247,028.04 × 91,487,505.78
  4. Step 4: Simplify right side
    166,861,011.49x = 21,064,726,308,179,884
  5. Step 5: Solve for x
    x = 21,064,726,308,179,884/166,861,011.49
  6. Step 6: Final answer
    x = 126,241,151.96

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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.