Finding the Fourth Proportional to 5,188,477.70, 7,761,721.35 and 4,558,621.70
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Solution
The fourth proportional to 5,188,477.70, 7,761,721.35 and 4,558,621.70 is: 6,819,486.07
Step by Step Solution
- Step 1: Write the proportion equation
5,188,477.70 : 7,761,721.35 = 4,558,621.70 : x - Step 2: Convert to fraction form
5,188,477.70/7,761,721.35 = 4,558,621.70/x - Step 3: Cross multiply
5,188,477.70x = 7,761,721.35 × 4,558,621.70 - Step 4: Simplify right side
5,188,477.70x = 35,382,751,375,463.30 - Step 5: Solve for x
x = 35,382,751,375,463.30/5,188,477.70 - Step 6: Final answer
x = 6,819,486.07
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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.