Finding the Fourth Proportional to 3,576,115.20, 5,364,172.80 and 3,186,391.80
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Solution
The fourth proportional to 3,576,115.20, 5,364,172.80 and 3,186,391.80 is: 4,779,587.70
Step by Step Solution
- Step 1: Write the proportion equation
3,576,115.20 : 5,364,172.80 = 3,186,391.80 : x - Step 2: Convert to fraction form
3,576,115.20/5,364,172.80 = 3,186,391.80/x - Step 3: Cross multiply
3,576,115.20x = 5,364,172.80 × 3,186,391.80 - Step 4: Simplify right side
3,576,115.20x = 17,092,356,223,703.04 - Step 5: Solve for x
x = 17,092,356,223,703.04/3,576,115.20 - Step 6: Final answer
x = 4,779,587.70
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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.