Home / 373,628,179.72-515,638,758.90-208,647,621.64

Finding the Fourth Proportional to 373,628,179.72, 515,638,758.90 and 208,647,621.64

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Solution

The fourth proportional to 373,628,179.72, 515,638,758.90 and 208,647,621.64 is: 287,951,515.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,628,179.72 : 515,638,758.90 = 208,647,621.64 : x
  2. Step 2: Convert to fraction form
    373,628,179.72/515,638,758.90 = 208,647,621.64/x
  3. Step 3: Cross multiply
    373,628,179.72x = 515,638,758.90 × 208,647,621.64
  4. Step 4: Simplify right side
    373,628,179.72x = 107,586,800,669,886,368
  5. Step 5: Solve for x
    x = 107,586,800,669,886,368/373,628,179.72
  6. Step 6: Final answer
    x = 287,951,515.73

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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.