Finding the Fourth Proportional to 7,972,709.94, 11,960,965.58 and 2,581,361.96
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Solution
The fourth proportional to 7,972,709.94, 11,960,965.58 and 2,581,361.96 is: 3,872,658.32
Step by Step Solution
- Step 1: Write the proportion equation
7,972,709.94 : 11,960,965.58 = 2,581,361.96 : x - Step 2: Convert to fraction form
7,972,709.94/11,960,965.58 = 2,581,361.96/x - Step 3: Cross multiply
7,972,709.94x = 11,960,965.58 × 2,581,361.96 - Step 4: Simplify right side
7,972,709.94x = 30,875,581,480,369.70 - Step 5: Solve for x
x = 30,875,581,480,369.70/7,972,709.94 - Step 6: Final answer
x = 3,872,658.32
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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.