Finding the Fourth Proportional to 12,396,729.15, 18,540,703.98 and 11,040,070.14
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Solution
The fourth proportional to 12,396,729.15, 18,540,703.98 and 11,040,070.14 is: 16,511,667.71
Step by Step Solution
- Step 1: Write the proportion equation
12,396,729.15 : 18,540,703.98 = 11,040,070.14 : x - Step 2: Convert to fraction form
12,396,729.15/18,540,703.98 = 11,040,070.14/x - Step 3: Cross multiply
12,396,729.15x = 18,540,703.98 × 11,040,070.14 - Step 4: Simplify right side
12,396,729.15x = 204,690,672,384,177.19 - Step 5: Solve for x
x = 204,690,672,384,177.19/12,396,729.15 - Step 6: Final answer
x = 16,511,667.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.