Finding the Fourth Proportional to 3,885,639.05, 5,362,187.04 and 2,143,269.32
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Solution
The fourth proportional to 3,885,639.05, 5,362,187.04 and 2,143,269.32 is: 2,957,714.49
Step by Step Solution
- Step 1: Write the proportion equation
3,885,639.05 : 5,362,187.04 = 2,143,269.32 : x - Step 2: Convert to fraction form
3,885,639.05/5,362,187.04 = 2,143,269.32/x - Step 3: Cross multiply
3,885,639.05x = 5,362,187.04 × 2,143,269.32 - Step 4: Simplify right side
3,885,639.05x = 11,492,610,944,122.68 - Step 5: Solve for x
x = 11,492,610,944,122.68/3,885,639.05 - Step 6: Final answer
x = 2,957,714.49
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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.