Finding the Fourth Proportional to 7,049,391.12, 9,728,125.92 and 3,993,598.08
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Solution
The fourth proportional to 7,049,391.12, 9,728,125.92 and 3,993,598.08 is: 5,511,146.19
Step by Step Solution
- Step 1: Write the proportion equation
7,049,391.12 : 9,728,125.92 = 3,993,598.08 : x - Step 2: Convert to fraction form
7,049,391.12/9,728,125.92 = 3,993,598.08/x - Step 3: Cross multiply
7,049,391.12x = 9,728,125.92 × 3,993,598.08 - Step 4: Simplify right side
7,049,391.12x = 38,850,224,996,110.23 - Step 5: Solve for x
x = 38,850,224,996,110.23/7,049,391.12 - Step 6: Final answer
x = 5,511,146.19
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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.