Home / 251,122,240.20-376,480,085.88-78,510,203.40

Finding the Fourth Proportional to 251,122,240.20, 376,480,085.88 and 78,510,203.40

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Solution

The fourth proportional to 251,122,240.20, 376,480,085.88 and 78,510,203.40 is: 117,701,753.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,122,240.20 : 376,480,085.88 = 78,510,203.40 : x
  2. Step 2: Convert to fraction form
    251,122,240.20/376,480,085.88 = 78,510,203.40/x
  3. Step 3: Cross multiply
    251,122,240.20x = 376,480,085.88 × 78,510,203.40
  4. Step 4: Simplify right side
    251,122,240.20x = 29,557,528,118,488,268
  5. Step 5: Solve for x
    x = 29,557,528,118,488,268/251,122,240.20
  6. Step 6: Final answer
    x = 117,701,753.91

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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.