Finding the Fourth Proportional to 18,469,512.60, 27,704,268.90 and 11,667,067.80
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Solution
The fourth proportional to 18,469,512.60, 27,704,268.90 and 11,667,067.80 is: 17,500,601.70
Step by Step Solution
- Step 1: Write the proportion equation
18,469,512.60 : 27,704,268.90 = 11,667,067.80 : x - Step 2: Convert to fraction form
18,469,512.60/27,704,268.90 = 11,667,067.80/x - Step 3: Cross multiply
18,469,512.60x = 27,704,268.90 × 11,667,067.80 - Step 4: Simplify right side
18,469,512.60x = 323,227,583,605,731.44 - Step 5: Solve for x
x = 323,227,583,605,731.44/18,469,512.60 - Step 6: Final answer
x = 17,500,601.70
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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.