Home / 12,409,741.81-18,614,618.11-3,890,742.49

Finding the Fourth Proportional to 12,409,741.81, 18,614,618.11 and 3,890,742.49

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Solution

The fourth proportional to 12,409,741.81, 18,614,618.11 and 3,890,742.49 is: 5,836,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409,741.81 : 18,614,618.11 = 3,890,742.49 : x
  2. Step 2: Convert to fraction form
    12,409,741.81/18,614,618.11 = 3,890,742.49/x
  3. Step 3: Cross multiply
    12,409,741.81x = 18,614,618.11 × 3,890,742.49
  4. Step 4: Simplify right side
    12,409,741.81x = 72,424,685,522,627.41
  5. Step 5: Solve for x
    x = 72,424,685,522,627.41/12,409,741.81
  6. Step 6: Final answer
    x = 5,836,115.42

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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.