Finding the Fourth Proportional to 5,147,394.72, 7,103,413.08 and 2,855,555.46
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Solution
The fourth proportional to 5,147,394.72, 7,103,413.08 and 2,855,555.46 is: 3,940,671.18
Step by Step Solution
- Step 1: Write the proportion equation
5,147,394.72 : 7,103,413.08 = 2,855,555.46 : x - Step 2: Convert to fraction form
5,147,394.72/7,103,413.08 = 2,855,555.46/x - Step 3: Cross multiply
5,147,394.72x = 7,103,413.08 × 2,855,555.46 - Step 4: Simplify right side
5,147,394.72x = 20,284,190,005,229.42 - Step 5: Solve for x
x = 20,284,190,005,229.42/5,147,394.72 - Step 6: Final answer
x = 3,940,671.18
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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.