Home / 18,800,915.06-28,201,372.90-12,409,672.64

Finding the Fourth Proportional to 18,800,915.06, 28,201,372.90 and 12,409,672.64

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Solution

The fourth proportional to 18,800,915.06, 28,201,372.90 and 12,409,672.64 is: 18,614,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800,915.06 : 28,201,372.90 = 12,409,672.64 : x
  2. Step 2: Convert to fraction form
    18,800,915.06/28,201,372.90 = 12,409,672.64/x
  3. Step 3: Cross multiply
    18,800,915.06x = 28,201,372.90 × 12,409,672.64
  4. Step 4: Simplify right side
    18,800,915.06x = 349,969,805,515,536.44
  5. Step 5: Solve for x
    x = 349,969,805,515,536.44/18,800,915.06
  6. Step 6: Final answer
    x = 18,614,509.15

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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.