Home / 13,145,621.44-18,140,622.75-7,344,446.80

Finding the Fourth Proportional to 13,145,621.44, 18,140,622.75 and 7,344,446.80

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Solution

The fourth proportional to 13,145,621.44, 18,140,622.75 and 7,344,446.80 is: 10,135,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,621.44 : 18,140,622.75 = 7,344,446.80 : x
  2. Step 2: Convert to fraction form
    13,145,621.44/18,140,622.75 = 7,344,446.80/x
  3. Step 3: Cross multiply
    13,145,621.44x = 18,140,622.75 × 7,344,446.80
  4. Step 4: Simplify right side
    13,145,621.44x = 133,232,838,706,244.70
  5. Step 5: Solve for x
    x = 133,232,838,706,244.70/13,145,621.44
  6. Step 6: Final answer
    x = 10,135,149.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.