Home / 189,504,090.84-261,517,448.28-111,188,976.78

Finding the Fourth Proportional to 189,504,090.84, 261,517,448.28 and 111,188,976.78

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Solution

The fourth proportional to 189,504,090.84, 261,517,448.28 and 111,188,976.78 is: 153,441,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,504,090.84 : 261,517,448.28 = 111,188,976.78 : x
  2. Step 2: Convert to fraction form
    189,504,090.84/261,517,448.28 = 111,188,976.78/x
  3. Step 3: Cross multiply
    189,504,090.84x = 261,517,448.28 × 111,188,976.78
  4. Step 4: Simplify right side
    189,504,090.84x = 29,077,857,484,369,772
  5. Step 5: Solve for x
    x = 29,077,857,484,369,772/189,504,090.84
  6. Step 6: Final answer
    x = 153,441,845.80

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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.