Finding the Fourth Proportional to 5,181,616.38, 7,764,748.26 and 2,103,864.55
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Solution
The fourth proportional to 5,181,616.38, 7,764,748.26 and 2,103,864.55 is: 3,152,680.05
Step by Step Solution
- Step 1: Write the proportion equation
5,181,616.38 : 7,764,748.26 = 2,103,864.55 : x - Step 2: Convert to fraction form
5,181,616.38/7,764,748.26 = 2,103,864.55/x - Step 3: Cross multiply
5,181,616.38x = 7,764,748.26 × 2,103,864.55 - Step 4: Simplify right side
5,181,616.38x = 16,335,978,603,888.18 - Step 5: Solve for x
x = 16,335,978,603,888.18/5,181,616.38 - Step 6: Final answer
x = 3,152,680.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.