Home / 18,266,626.15-25,202,012.91-12,455,318.80

Finding the Fourth Proportional to 18,266,626.15, 25,202,012.91 and 12,455,318.80

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Solution

The fourth proportional to 18,266,626.15, 25,202,012.91 and 12,455,318.80 is: 17,184,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266,626.15 : 25,202,012.91 = 12,455,318.80 : x
  2. Step 2: Convert to fraction form
    18,266,626.15/25,202,012.91 = 12,455,318.80/x
  3. Step 3: Cross multiply
    18,266,626.15x = 25,202,012.91 × 12,455,318.80
  4. Step 4: Simplify right side
    18,266,626.15x = 313,899,105,195,765.75
  5. Step 5: Solve for x
    x = 313,899,105,195,765.75/18,266,626.15
  6. Step 6: Final answer
    x = 17,184,295.70

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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.