Home / 13,365,856.80-20,048,785.20-3,910,240.80

Finding the Fourth Proportional to 13,365,856.80, 20,048,785.20 and 3,910,240.80

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Solution

The fourth proportional to 13,365,856.80, 20,048,785.20 and 3,910,240.80 is: 5,865,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365,856.80 : 20,048,785.20 = 3,910,240.80 : x
  2. Step 2: Convert to fraction form
    13,365,856.80/20,048,785.20 = 3,910,240.80/x
  3. Step 3: Cross multiply
    13,365,856.80x = 20,048,785.20 × 3,910,240.80
  4. Step 4: Simplify right side
    13,365,856.80x = 78,395,577,879,476.16
  5. Step 5: Solve for x
    x = 78,395,577,879,476.16/13,365,856.80
  6. Step 6: Final answer
    x = 5,865,361.20

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Double scale
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Similar ratio
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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.