Finding the Fourth Proportional to 3,431,988.54, 4,738,362.80 and 2,126,625.80
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Solution
The fourth proportional to 3,431,988.54, 4,738,362.80 and 2,126,625.80 is: 2,936,118.35
Step by Step Solution
- Step 1: Write the proportion equation
3,431,988.54 : 4,738,362.80 = 2,126,625.80 : x - Step 2: Convert to fraction form
3,431,988.54/4,738,362.80 = 2,126,625.80/x - Step 3: Cross multiply
3,431,988.54x = 4,738,362.80 × 2,126,625.80 - Step 4: Simplify right side
3,431,988.54x = 10,076,724,545,915.30 - Step 5: Solve for x
x = 10,076,724,545,915.30/3,431,988.54 - Step 6: Final answer
x = 2,936,118.35
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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.