Home / 12,477,286.40-18,715,929.60-8,824,121.60

Finding the Fourth Proportional to 12,477,286.40, 18,715,929.60 and 8,824,121.60

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Solution

The fourth proportional to 12,477,286.40, 18,715,929.60 and 8,824,121.60 is: 13,236,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,286.40 : 18,715,929.60 = 8,824,121.60 : x
  2. Step 2: Convert to fraction form
    12,477,286.40/18,715,929.60 = 8,824,121.60/x
  3. Step 3: Cross multiply
    12,477,286.40x = 18,715,929.60 × 8,824,121.60
  4. Step 4: Simplify right side
    12,477,286.40x = 165,151,638,647,439.38
  5. Step 5: Solve for x
    x = 165,151,638,647,439.38/12,477,286.40
  6. Step 6: Final answer
    x = 13,236,182.40

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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.