Finding the Fourth Proportional to 3,771,175.86, 5,204,340.72 and 2,139,651.99
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Solution
The fourth proportional to 3,771,175.86, 5,204,340.72 and 2,139,651.99 is: 2,952,786.71
Step by Step Solution
- Step 1: Write the proportion equation
3,771,175.86 : 5,204,340.72 = 2,139,651.99 : x - Step 2: Convert to fraction form
3,771,175.86/5,204,340.72 = 2,139,651.99/x - Step 3: Cross multiply
3,771,175.86x = 5,204,340.72 × 2,139,651.99 - Step 4: Simplify right side
3,771,175.86x = 11,135,477,978,186.03 - Step 5: Solve for x
x = 11,135,477,978,186.03/3,771,175.86 - Step 6: Final answer
x = 2,952,786.71
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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.