Home / 12,408,911.71-18,613,600.85-3,889,059.55

Finding the Fourth Proportional to 12,408,911.71, 18,613,600.85 and 3,889,059.55

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Solution

The fourth proportional to 12,408,911.71, 18,613,600.85 and 3,889,059.55 is: 5,833,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408,911.71 : 18,613,600.85 = 3,889,059.55 : x
  2. Step 2: Convert to fraction form
    12,408,911.71/18,613,600.85 = 3,889,059.55/x
  3. Step 3: Cross multiply
    12,408,911.71x = 18,613,600.85 × 3,889,059.55
  4. Step 4: Simplify right side
    12,408,911.71x = 72,389,402,145,580.62
  5. Step 5: Solve for x
    x = 72,389,402,145,580.62/12,408,911.71
  6. Step 6: Final answer
    x = 5,833,662.44

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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.