Finding the Fourth Proportional to 5,215,664.29, 7,198,047.60 and 2,893,305.56
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Solution
The fourth proportional to 5,215,664.29, 7,198,047.60 and 2,893,305.56 is: 3,993,000.70
Step by Step Solution
- Step 1: Write the proportion equation
5,215,664.29 : 7,198,047.60 = 2,893,305.56 : x - Step 2: Convert to fraction form
5,215,664.29/7,198,047.60 = 2,893,305.56/x - Step 3: Cross multiply
5,215,664.29x = 7,198,047.60 × 2,893,305.56 - Step 4: Simplify right side
5,215,664.29x = 20,826,151,138,652.04 - Step 5: Solve for x
x = 20,826,151,138,652.04/5,215,664.29 - Step 6: Final answer
x = 3,993,000.70
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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.