Home / 251,122,229.70-376,480,070.19-78,510,192.90

Finding the Fourth Proportional to 251,122,229.70, 376,480,070.19 and 78,510,192.90

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Solution

The fourth proportional to 251,122,229.70, 376,480,070.19 and 78,510,192.90 is: 117,701,738.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,122,229.70 : 376,480,070.19 = 78,510,192.90 : x
  2. Step 2: Convert to fraction form
    251,122,229.70/376,480,070.19 = 78,510,192.90/x
  3. Step 3: Cross multiply
    251,122,229.70x = 376,480,070.19 × 78,510,192.90
  4. Step 4: Simplify right side
    251,122,229.70x = 29,557,522,933,622,440
  5. Step 5: Solve for x
    x = 29,557,522,933,622,440/251,122,229.70
  6. Step 6: Final answer
    x = 117,701,738.19

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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.