Home / 81,640,028.60-122,292,081.30-41,273,257.40

Finding the Fourth Proportional to 81,640,028.60, 122,292,081.30 and 41,273,257.40

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Solution

The fourth proportional to 81,640,028.60, 122,292,081.30 and 41,273,257.40 is: 61,824,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,640,028.60 : 122,292,081.30 = 41,273,257.40 : x
  2. Step 2: Convert to fraction form
    81,640,028.60/122,292,081.30 = 41,273,257.40/x
  3. Step 3: Cross multiply
    81,640,028.60x = 122,292,081.30 × 41,273,257.40
  4. Step 4: Simplify right side
    81,640,028.60x = 5,047,392,549,476,626
  5. Step 5: Solve for x
    x = 5,047,392,549,476,626/81,640,028.60
  6. Step 6: Final answer
    x = 61,824,972.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.