Finding the Fourth Proportional to 7,049,431.12, 9,728,181 and 3,993,638.08
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Solution
The fourth proportional to 7,049,431.12, 9,728,181 and 3,993,638.08 is: 5,511,201.32
Step by Step Solution
- Step 1: Write the proportion equation
7,049,431.12 : 9,728,181 = 3,993,638.08 : x - Step 2: Convert to fraction form
7,049,431.12/9,728,181 = 3,993,638.08/x - Step 3: Cross multiply
7,049,431.12x = 9,728,181 × 3,993,638.08 - Step 4: Simplify right side
7,049,431.12x = 38,850,834,090,732.48 - Step 5: Solve for x
x = 38,850,834,090,732.48/7,049,431.12 - Step 6: Final answer
x = 5,511,201.32
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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.