Home / 18,880,218.60-28,334,324.70-12,488,346.60

Finding the Fourth Proportional to 18,880,218.60, 28,334,324.70 and 12,488,346.60

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Solution

The fourth proportional to 18,880,218.60, 28,334,324.70 and 12,488,346.60 is: 18,741,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880,218.60 : 28,334,324.70 = 12,488,346.60 : x
  2. Step 2: Convert to fraction form
    18,880,218.60/28,334,324.70 = 12,488,346.60/x
  3. Step 3: Cross multiply
    18,880,218.60x = 28,334,324.70 × 12,488,346.60
  4. Step 4: Simplify right side
    18,880,218.60x = 353,848,867,530,541
  5. Step 5: Solve for x
    x = 353,848,867,530,541/18,880,218.60
  6. Step 6: Final answer
    x = 18,741,778.10

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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.