Finding the Fourth Proportional to 39,093,138.47, 53,948,537.75 and 21,689,442.16
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Solution
The fourth proportional to 39,093,138.47, 53,948,537.75 and 21,689,442.16 is: 29,931,433.87
Step by Step Solution
- Step 1: Write the proportion equation
39,093,138.47 : 53,948,537.75 = 21,689,442.16 : x - Step 2: Convert to fraction form
39,093,138.47/53,948,537.75 = 21,689,442.16/x - Step 3: Cross multiply
39,093,138.47x = 53,948,537.75 × 21,689,442.16 - Step 4: Simplify right side
39,093,138.47x = 1,170,113,689,064,553.75 - Step 5: Solve for x
x = 1,170,113,689,064,553.75/39,093,138.47 - Step 6: Final answer
x = 29,931,433.87
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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.