Finding the Fourth Proportional to 12,121,294.11, 18,134,775.75 and 11,103,473.88
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Solution
The fourth proportional to 12,121,294.11, 18,134,775.75 and 11,103,473.88 is: 16,612,005.87
Step by Step Solution
- Step 1: Write the proportion equation
12,121,294.11 : 18,134,775.75 = 11,103,473.88 : x - Step 2: Convert to fraction form
12,121,294.11/18,134,775.75 = 11,103,473.88/x - Step 3: Cross multiply
12,121,294.11x = 18,134,775.75 × 11,103,473.88 - Step 4: Simplify right side
12,121,294.11x = 201,359,008,769,108.53 - Step 5: Solve for x
x = 201,359,008,769,108.53/12,121,294.11 - Step 6: Final answer
x = 16,612,005.87
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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.