Home / 12,485,190.98-18,727,786.59-3,509,742.98

Finding the Fourth Proportional to 12,485,190.98, 18,727,786.59 and 3,509,742.98

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Solution

The fourth proportional to 12,485,190.98, 18,727,786.59 and 3,509,742.98 is: 5,264,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,190.98 : 18,727,786.59 = 3,509,742.98 : x
  2. Step 2: Convert to fraction form
    12,485,190.98/18,727,786.59 = 3,509,742.98/x
  3. Step 3: Cross multiply
    12,485,190.98x = 18,727,786.59 × 3,509,742.98
  4. Step 4: Simplify right side
    12,485,190.98x = 65,729,717,515,190.64
  5. Step 5: Solve for x
    x = 65,729,717,515,190.64/12,485,190.98
  6. Step 6: Final answer
    x = 5,264,614.50

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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.