Finding the Fourth Proportional to 5,385,749.82, 7,432,326.27 and 2,938,361.09
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Solution
The fourth proportional to 5,385,749.82, 7,432,326.27 and 2,938,361.09 is: 4,054,933.67
Step by Step Solution
- Step 1: Write the proportion equation
5,385,749.82 : 7,432,326.27 = 2,938,361.09 : x - Step 2: Convert to fraction form
5,385,749.82/7,432,326.27 = 2,938,361.09/x - Step 3: Cross multiply
5,385,749.82x = 7,432,326.27 × 2,938,361.09 - Step 4: Simplify right side
5,385,749.82x = 21,838,858,282,791.20 - Step 5: Solve for x
x = 21,838,858,282,791.20/5,385,749.82 - Step 6: Final answer
x = 4,054,933.67
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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.