Finding the Fourth Proportional to 7,146,433.98, 9,858,087.18 and 4,391,207.64
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Solution
The fourth proportional to 7,146,433.98, 9,858,087.18 and 4,391,207.64 is: 6,057,413.79
Step by Step Solution
- Step 1: Write the proportion equation
7,146,433.98 : 9,858,087.18 = 4,391,207.64 : x - Step 2: Convert to fraction form
7,146,433.98/9,858,087.18 = 4,391,207.64/x - Step 3: Cross multiply
7,146,433.98x = 9,858,087.18 × 4,391,207.64 - Step 4: Simplify right side
7,146,433.98x = 43,288,907,740,602.05 - Step 5: Solve for x
x = 43,288,907,740,602.05/7,146,433.98 - Step 6: Final answer
x = 6,057,413.79
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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.