Finding the Fourth Proportional to 2,996,491.05, 4,135,157.64 and 1,638,364.05
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Solution
The fourth proportional to 2,996,491.05, 4,135,157.64 and 1,638,364.05 is: 2,260,942.38
Step by Step Solution
- Step 1: Write the proportion equation
2,996,491.05 : 4,135,157.64 = 1,638,364.05 : x - Step 2: Convert to fraction form
2,996,491.05/4,135,157.64 = 1,638,364.05/x - Step 3: Cross multiply
2,996,491.05x = 4,135,157.64 × 1,638,364.05 - Step 4: Simplify right side
2,996,491.05x = 6,774,893,618,458.84 - Step 5: Solve for x
x = 6,774,893,618,458.84/2,996,491.05 - Step 6: Final answer
x = 2,260,942.38
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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.