Home / 189,504,085.82-261,517,441.39-111,188,971.76

Finding the Fourth Proportional to 189,504,085.82, 261,517,441.39 and 111,188,971.76

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Solution

The fourth proportional to 189,504,085.82, 261,517,441.39 and 111,188,971.76 is: 153,441,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,504,085.82 : 261,517,441.39 = 111,188,971.76 : x
  2. Step 2: Convert to fraction form
    189,504,085.82/261,517,441.39 = 111,188,971.76/x
  3. Step 3: Cross multiply
    189,504,085.82x = 261,517,441.39 × 111,188,971.76
  4. Step 4: Simplify right side
    189,504,085.82x = 29,077,855,403,874,604
  5. Step 5: Solve for x
    x = 29,077,855,403,874,604/189,504,085.82
  6. Step 6: Final answer
    x = 153,441,838.89

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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.