Finding the Fourth Proportional to 4,689,351.21, 6,471,304.66 and 2,543,175.21
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Solution
The fourth proportional to 4,689,351.21, 6,471,304.66 and 2,543,175.21 is: 3,509,581.78
Step by Step Solution
- Step 1: Write the proportion equation
4,689,351.21 : 6,471,304.66 = 2,543,175.21 : x - Step 2: Convert to fraction form
4,689,351.21/6,471,304.66 = 2,543,175.21/x - Step 3: Cross multiply
4,689,351.21x = 6,471,304.66 × 2,543,175.21 - Step 4: Simplify right side
4,689,351.21x = 16,457,661,587,669.48 - Step 5: Solve for x
x = 16,457,661,587,669.48/4,689,351.21 - Step 6: Final answer
x = 3,509,581.78
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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.