Finding the Fourth Proportional to 5,159,929.26, 7,120,706.94 and 2,836,861.30
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Solution
The fourth proportional to 5,159,929.26, 7,120,706.94 and 2,836,861.30 is: 3,914,871.10
Step by Step Solution
- Step 1: Write the proportion equation
5,159,929.26 : 7,120,706.94 = 2,836,861.30 : x - Step 2: Convert to fraction form
5,159,929.26/7,120,706.94 = 2,836,861.30/x - Step 3: Cross multiply
5,159,929.26x = 7,120,706.94 × 2,836,861.30 - Step 4: Simplify right side
5,159,929.26x = 20,200,457,947,649.63 - Step 5: Solve for x
x = 20,200,457,947,649.63/5,159,929.26 - Step 6: Final answer
x = 3,914,871.10
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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.