Finding the Fourth Proportional to 4,139,051.88, 5,711,814.92 and 2,303,493.96
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Solution
The fourth proportional to 4,139,051.88, 5,711,814.92 and 2,303,493.96 is: 3,178,778.99
Step by Step Solution
- Step 1: Write the proportion equation
4,139,051.88 : 5,711,814.92 = 2,303,493.96 : x - Step 2: Convert to fraction form
4,139,051.88/5,711,814.92 = 2,303,493.96/x - Step 3: Cross multiply
4,139,051.88x = 5,711,814.92 × 2,303,493.96 - Step 4: Simplify right side
4,139,051.88x = 13,157,131,168,857.88 - Step 5: Solve for x
x = 13,157,131,168,857.88/4,139,051.88 - Step 6: Final answer
x = 3,178,778.99
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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.