Finding the Fourth Proportional to 5,538,236.35, 7,643,149.64 and 3,091,323.55
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Solution
The fourth proportional to 5,538,236.35, 7,643,149.64 and 3,091,323.55 is: 4,266,240.55
Step by Step Solution
- Step 1: Write the proportion equation
5,538,236.35 : 7,643,149.64 = 3,091,323.55 : x - Step 2: Convert to fraction form
5,538,236.35/7,643,149.64 = 3,091,323.55/x - Step 3: Cross multiply
5,538,236.35x = 7,643,149.64 × 3,091,323.55 - Step 4: Simplify right side
5,538,236.35x = 23,627,448,478,306.02 - Step 5: Solve for x
x = 23,627,448,478,306.02/5,538,236.35 - Step 6: Final answer
x = 4,266,240.55
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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.