Home / 13,007,149.20-19,489,728.60-10,865,638.80

Finding the Fourth Proportional to 13,007,149.20, 19,489,728.60 and 10,865,638.80

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Solution

The fourth proportional to 13,007,149.20, 19,489,728.60 and 10,865,638.80 is: 16,280,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007,149.20 : 19,489,728.60 = 10,865,638.80 : x
  2. Step 2: Convert to fraction form
    13,007,149.20/19,489,728.60 = 10,865,638.80/x
  3. Step 3: Cross multiply
    13,007,149.20x = 19,489,728.60 × 10,865,638.80
  4. Step 4: Simplify right side
    13,007,149.20x = 211,768,351,277,629.72
  5. Step 5: Solve for x
    x = 211,768,351,277,629.72/13,007,149.20
  6. Step 6: Final answer
    x = 16,280,919.67

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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.