Finding the Fourth Proportional to 5,788,678.62, 7,988,866.74 and 3,211,189.50
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Solution
The fourth proportional to 5,788,678.62, 7,988,866.74 and 3,211,189.50 is: 4,431,713.47
Step by Step Solution
- Step 1: Write the proportion equation
5,788,678.62 : 7,988,866.74 = 3,211,189.50 : x - Step 2: Convert to fraction form
5,788,678.62/7,988,866.74 = 3,211,189.50/x - Step 3: Cross multiply
5,788,678.62x = 7,988,866.74 × 3,211,189.50 - Step 4: Simplify right side
5,788,678.62x = 25,653,764,992,387.23 - Step 5: Solve for x
x = 25,653,764,992,387.23/5,788,678.62 - Step 6: Final answer
x = 4,431,713.47
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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.