Finding the Fourth Proportional to 5,678,176.44, 7,835,412.78 and 3,230,136.12
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Solution
The fourth proportional to 5,678,176.44, 7,835,412.78 and 3,230,136.12 is: 4,457,320.08
Step by Step Solution
- Step 1: Write the proportion equation
5,678,176.44 : 7,835,412.78 = 3,230,136.12 : x - Step 2: Convert to fraction form
5,678,176.44/7,835,412.78 = 3,230,136.12/x - Step 3: Cross multiply
5,678,176.44x = 7,835,412.78 × 3,230,136.12 - Step 4: Simplify right side
5,678,176.44x = 25,309,449,835,787.62 - Step 5: Solve for x
x = 25,309,449,835,787.62/5,678,176.44 - Step 6: Final answer
x = 4,457,320.08
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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.