Finding the Fourth Proportional to 5,171,116.80, 7,135,613.09 and 3,183,936.84
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Solution
The fourth proportional to 5,171,116.80, 7,135,613.09 and 3,183,936.84 is: 4,393,507.68
Step by Step Solution
- Step 1: Write the proportion equation
5,171,116.80 : 7,135,613.09 = 3,183,936.84 : x - Step 2: Convert to fraction form
5,171,116.80/7,135,613.09 = 3,183,936.84/x - Step 3: Cross multiply
5,171,116.80x = 7,135,613.09 × 3,183,936.84 - Step 4: Simplify right side
5,171,116.80x = 22,719,341,341,639.48 - Step 5: Solve for x
x = 22,719,341,341,639.48/5,171,116.80 - Step 6: Final answer
x = 4,393,507.68
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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.