Finding the Fourth Proportional to 3,946,999.84, 5,446,860.24 and 2,136,163.84
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Solution
The fourth proportional to 3,946,999.84, 5,446,860.24 and 2,136,163.84 is: 2,947,906.35
Step by Step Solution
- Step 1: Write the proportion equation
3,946,999.84 : 5,446,860.24 = 2,136,163.84 : x - Step 2: Convert to fraction form
3,946,999.84/5,446,860.24 = 2,136,163.84/x - Step 3: Cross multiply
3,946,999.84x = 5,446,860.24 × 2,136,163.84 - Step 4: Simplify right side
3,946,999.84x = 11,635,385,886,221.72 - Step 5: Solve for x
x = 11,635,385,886,221.72/3,946,999.84 - Step 6: Final answer
x = 2,947,906.35
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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.