Finding the Fourth Proportional to 5,767,152.72, 7,958,328.80 and 3,188,631.12
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Solution
The fourth proportional to 5,767,152.72, 7,958,328.80 and 3,188,631.12 is: 4,400,121.88
Step by Step Solution
- Step 1: Write the proportion equation
5,767,152.72 : 7,958,328.80 = 3,188,631.12 : x - Step 2: Convert to fraction form
5,767,152.72/7,958,328.80 = 3,188,631.12/x - Step 3: Cross multiply
5,767,152.72x = 7,958,328.80 × 3,188,631.12 - Step 4: Simplify right side
5,767,152.72x = 25,376,174,874,872.26 - Step 5: Solve for x
x = 25,376,174,874,872.26/5,767,152.72 - Step 6: Final answer
x = 4,400,121.88
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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.