Finding the Fourth Proportional to 20,040,569.84, 27,647,765.29 and 12,193,791.70
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Solution
The fourth proportional to 20,040,569.84, 27,647,765.29 and 12,193,791.70 is: 16,822,430.38
Step by Step Solution
- Step 1: Write the proportion equation
20,040,569.84 : 27,647,765.29 = 12,193,791.70 : x - Step 2: Convert to fraction form
20,040,569.84/27,647,765.29 = 12,193,791.70/x - Step 3: Cross multiply
20,040,569.84x = 27,647,765.29 × 12,193,791.70 - Step 4: Simplify right side
20,040,569.84x = 337,131,090,916,750.06 - Step 5: Solve for x
x = 337,131,090,916,750.06/20,040,569.84 - Step 6: Final answer
x = 16,822,430.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.