Finding the Fourth Proportional to 5,739,647.40, 7,921,272.96 and 4,286,821.68
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Solution
The fourth proportional to 5,739,647.40, 7,921,272.96 and 4,286,821.68 is: 5,916,231.83
Step by Step Solution
- Step 1: Write the proportion equation
5,739,647.40 : 7,921,272.96 = 4,286,821.68 : x - Step 2: Convert to fraction form
5,739,647.40/7,921,272.96 = 4,286,821.68/x - Step 3: Cross multiply
5,739,647.40x = 7,921,272.96 × 4,286,821.68 - Step 4: Simplify right side
5,739,647.40x = 33,957,084,658,125.77 - Step 5: Solve for x
x = 33,957,084,658,125.77/5,739,647.40 - Step 6: Final answer
x = 5,916,231.83
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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.