Finding the Fourth Proportional to 5,438,692.63, 7,505,609.97 and 2,991,531.37
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Solution
The fourth proportional to 5,438,692.63, 7,505,609.97 and 2,991,531.37 is: 4,128,431.09
Step by Step Solution
- Step 1: Write the proportion equation
5,438,692.63 : 7,505,609.97 = 2,991,531.37 : x - Step 2: Convert to fraction form
5,438,692.63/7,505,609.97 = 2,991,531.37/x - Step 3: Cross multiply
5,438,692.63x = 7,505,609.97 × 2,991,531.37 - Step 4: Simplify right side
5,438,692.63x = 22,453,267,700,646.38 - Step 5: Solve for x
x = 22,453,267,700,646.38/5,438,692.63 - Step 6: Final answer
x = 4,128,431.09
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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.