Finding the Fourth Proportional to 7,763,640.81, 11,647,557.69 and 2,372,143.92
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Solution
The fourth proportional to 7,763,640.81, 11,647,557.69 and 2,372,143.92 is: 3,558,856.45
Step by Step Solution
- Step 1: Write the proportion equation
7,763,640.81 : 11,647,557.69 = 2,372,143.92 : x - Step 2: Convert to fraction form
7,763,640.81/11,647,557.69 = 2,372,143.92/x - Step 3: Cross multiply
7,763,640.81x = 11,647,557.69 × 2,372,143.92 - Step 4: Simplify right side
7,763,640.81x = 27,629,683,157,182.74 - Step 5: Solve for x
x = 27,629,683,157,182.74/7,763,640.81 - Step 6: Final answer
x = 3,558,856.45
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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.