Home / 13,439,240.80-20,158,861.20-8,064,469.60

Finding the Fourth Proportional to 13,439,240.80, 20,158,861.20 and 8,064,469.60

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Solution

The fourth proportional to 13,439,240.80, 20,158,861.20 and 8,064,469.60 is: 12,096,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439,240.80 : 20,158,861.20 = 8,064,469.60 : x
  2. Step 2: Convert to fraction form
    13,439,240.80/20,158,861.20 = 8,064,469.60/x
  3. Step 3: Cross multiply
    13,439,240.80x = 20,158,861.20 × 8,064,469.60
  4. Step 4: Simplify right side
    13,439,240.80x = 162,570,523,318,019.50
  5. Step 5: Solve for x
    x = 162,570,523,318,019.50/13,439,240.80
  6. Step 6: Final answer
    x = 12,096,704.40

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1.5x scale

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.