Finding the Fourth Proportional to 18,396,543.90, 27,573,890.49 and 11,192,197.02
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Solution
The fourth proportional to 18,396,543.90, 27,573,890.49 and 11,192,197.02 is: 16,775,564.84
Step by Step Solution
- Step 1: Write the proportion equation
18,396,543.90 : 27,573,890.49 = 11,192,197.02 : x - Step 2: Convert to fraction form
18,396,543.90/27,573,890.49 = 11,192,197.02/x - Step 3: Cross multiply
18,396,543.90x = 27,573,890.49 × 11,192,197.02 - Step 4: Simplify right side
18,396,543.90x = 308,612,414,971,984.31 - Step 5: Solve for x
x = 308,612,414,971,984.31/18,396,543.90 - Step 6: Final answer
x = 16,775,564.84
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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.