Finding the Fourth Proportional to 3,965,697.80, 5,472,697.62 and 2,154,861.80
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Solution
The fourth proportional to 3,965,697.80, 5,472,697.62 and 2,154,861.80 is: 2,973,728.12
Step by Step Solution
- Step 1: Write the proportion equation
3,965,697.80 : 5,472,697.62 = 2,154,861.80 : x - Step 2: Convert to fraction form
3,965,697.80/5,472,697.62 = 2,154,861.80/x - Step 3: Cross multiply
3,965,697.80x = 5,472,697.62 × 2,154,861.80 - Step 4: Simplify right side
3,965,697.80x = 11,792,907,044,288.92 - Step 5: Solve for x
x = 11,792,907,044,288.92/3,965,697.80 - Step 6: Final answer
x = 2,973,728.12
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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.