Home / 12,151,890.60-18,211,890.78-8,941,986.60

Finding the Fourth Proportional to 12,151,890.60, 18,211,890.78 and 8,941,986.60

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Solution

The fourth proportional to 12,151,890.60, 18,211,890.78 and 8,941,986.60 is: 13,401,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151,890.60 : 18,211,890.78 = 8,941,986.60 : x
  2. Step 2: Convert to fraction form
    12,151,890.60/18,211,890.78 = 8,941,986.60/x
  3. Step 3: Cross multiply
    12,151,890.60x = 18,211,890.78 × 8,941,986.60
  4. Step 4: Simplify right side
    12,151,890.60x = 162,850,483,315,423.56
  5. Step 5: Solve for x
    x = 162,850,483,315,423.56/12,151,890.60
  6. Step 6: Final answer
    x = 13,401,246.66

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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.