Finding the Fourth Proportional to 18,588,549.11, 27,893,736.81 and 7,805,020.73
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Solution
The fourth proportional to 18,588,549.11, 27,893,736.81 and 7,805,020.73 is: 11,712,113.34
Step by Step Solution
- Step 1: Write the proportion equation
18,588,549.11 : 27,893,736.81 = 7,805,020.73 : x - Step 2: Convert to fraction form
18,588,549.11/27,893,736.81 = 7,805,020.73/x - Step 3: Cross multiply
18,588,549.11x = 27,893,736.81 × 7,805,020.73 - Step 4: Simplify right side
18,588,549.11x = 217,711,193,899,745.38 - Step 5: Solve for x
x = 217,711,193,899,745.38/18,588,549.11 - Step 6: Final answer
x = 11,712,113.34
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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.