Home / 187,640,081.62-258,943,138.41-105,134,456.86

Finding the Fourth Proportional to 187,640,081.62, 258,943,138.41 and 105,134,456.86

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Solution

The fourth proportional to 187,640,081.62, 258,943,138.41 and 105,134,456.86 is: 145,085,452.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,640,081.62 : 258,943,138.41 = 105,134,456.86 : x
  2. Step 2: Convert to fraction form
    187,640,081.62/258,943,138.41 = 105,134,456.86/x
  3. Step 3: Cross multiply
    187,640,081.62x = 258,943,138.41 × 105,134,456.86
  4. Step 4: Simplify right side
    187,640,081.62x = 27,223,846,214,359,152
  5. Step 5: Solve for x
    x = 27,223,846,214,359,152/187,640,081.62
  6. Step 6: Final answer
    x = 145,085,452.85

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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.