Home / 13,479,880.40-20,219,820.60-12,136,187.60

Finding the Fourth Proportional to 13,479,880.40, 20,219,820.60 and 12,136,187.60

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Solution

The fourth proportional to 13,479,880.40, 20,219,820.60 and 12,136,187.60 is: 18,204,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,880.40 : 20,219,820.60 = 12,136,187.60 : x
  2. Step 2: Convert to fraction form
    13,479,880.40/20,219,820.60 = 12,136,187.60/x
  3. Step 3: Cross multiply
    13,479,880.40x = 20,219,820.60 × 12,136,187.60
  4. Step 4: Simplify right side
    13,479,880.40x = 245,391,536,039,944.56
  5. Step 5: Solve for x
    x = 245,391,536,039,944.56/13,479,880.40
  6. Step 6: Final answer
    x = 18,204,281.40

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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.