Home / 80,684,189.94-120,934,546.77-70,949,726.58

Finding the Fourth Proportional to 80,684,189.94, 120,934,546.77 and 70,949,726.58

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Solution

The fourth proportional to 80,684,189.94, 120,934,546.77 and 70,949,726.58 is: 106,343,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,684,189.94 : 120,934,546.77 = 70,949,726.58 : x
  2. Step 2: Convert to fraction form
    80,684,189.94/120,934,546.77 = 70,949,726.58/x
  3. Step 3: Cross multiply
    80,684,189.94x = 120,934,546.77 × 70,949,726.58
  4. Step 4: Simplify right side
    80,684,189.94x = 8,580,273,027,407,722
  5. Step 5: Solve for x
    x = 8,580,273,027,407,722/80,684,189.94
  6. Step 6: Final answer
    x = 106,343,919.84

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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.