Home / 81,512,558.10-122,268,837.15-54,302,778.90

Finding the Fourth Proportional to 81,512,558.10, 122,268,837.15 and 54,302,778.90

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Solution

The fourth proportional to 81,512,558.10, 122,268,837.15 and 54,302,778.90 is: 81,454,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512,558.10 : 122,268,837.15 = 54,302,778.90 : x
  2. Step 2: Convert to fraction form
    81,512,558.10/122,268,837.15 = 54,302,778.90/x
  3. Step 3: Cross multiply
    81,512,558.10x = 122,268,837.15 × 54,302,778.90
  4. Step 4: Simplify right side
    81,512,558.10x = 6,639,537,630,116,556
  5. Step 5: Solve for x
    x = 6,639,537,630,116,556/81,512,558.10
  6. Step 6: Final answer
    x = 81,454,168.35

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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.