Home / 189,487,310.52-261,383,340.78-114,081,143.16

Finding the Fourth Proportional to 189,487,310.52, 261,383,340.78 and 114,081,143.16

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Solution

The fourth proportional to 189,487,310.52, 261,383,340.78 and 114,081,143.16 is: 157,366,264.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,487,310.52 : 261,383,340.78 = 114,081,143.16 : x
  2. Step 2: Convert to fraction form
    189,487,310.52/261,383,340.78 = 114,081,143.16/x
  3. Step 3: Cross multiply
    189,487,310.52x = 261,383,340.78 × 114,081,143.16
  4. Step 4: Simplify right side
    189,487,310.52x = 29,818,910,319,162,244
  5. Step 5: Solve for x
    x = 29,818,910,319,162,244/189,487,310.52
  6. Step 6: Final answer
    x = 157,366,264.99

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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.