Finding the Fourth Proportional to 5,135,455.29, 7,086,841.74 and 2,843,566.77
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Solution
The fourth proportional to 5,135,455.29, 7,086,841.74 and 2,843,566.77 is: 3,924,074.21
Step by Step Solution
- Step 1: Write the proportion equation
5,135,455.29 : 7,086,841.74 = 2,843,566.77 : x - Step 2: Convert to fraction form
5,135,455.29/7,086,841.74 = 2,843,566.77/x - Step 3: Cross multiply
5,135,455.29x = 7,086,841.74 × 2,843,566.77 - Step 4: Simplify right side
5,135,455.29x = 20,151,907,676,112.98 - Step 5: Solve for x
x = 20,151,907,676,112.98/5,135,455.29 - Step 6: Final answer
x = 3,924,074.21
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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.