Finding the Fourth Proportional to 4,085,819.68, 5,638,013.90 and 2,515,702.18
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Solution
The fourth proportional to 4,085,819.68, 5,638,013.90 and 2,515,702.18 is: 3,471,412.09
Step by Step Solution
- Step 1: Write the proportion equation
4,085,819.68 : 5,638,013.90 = 2,515,702.18 : x - Step 2: Convert to fraction form
4,085,819.68/5,638,013.90 = 2,515,702.18/x - Step 3: Cross multiply
4,085,819.68x = 5,638,013.90 × 2,515,702.18 - Step 4: Simplify right side
4,085,819.68x = 14,183,563,818,331.72 - Step 5: Solve for x
x = 14,183,563,818,331.72/4,085,819.68 - Step 6: Final answer
x = 3,471,412.09
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1.5x scale
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.