Finding the Fourth Proportional to 4,085,819.18, 5,638,013.21 and 2,515,701.68
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Solution
The fourth proportional to 4,085,819.18, 5,638,013.21 and 2,515,701.68 is: 3,471,411.40
Step by Step Solution
- Step 1: Write the proportion equation
4,085,819.18 : 5,638,013.21 = 2,515,701.68 : x - Step 2: Convert to fraction form
4,085,819.18/5,638,013.21 = 2,515,701.68/x - Step 3: Cross multiply
4,085,819.18x = 5,638,013.21 × 2,515,701.68 - Step 4: Simplify right side
4,085,819.18x = 14,183,559,268,207.56 - Step 5: Solve for x
x = 14,183,559,268,207.56/4,085,819.18 - Step 6: Final answer
x = 3,471,411.40
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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.