Finding the Fourth Proportional to 3,723,442.68, 5,138,371.50 and 2,091,918.84
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Solution
The fourth proportional to 3,723,442.68, 5,138,371.50 and 2,091,918.84 is: 2,886,859.57
Step by Step Solution
- Step 1: Write the proportion equation
3,723,442.68 : 5,138,371.50 = 2,091,918.84 : x - Step 2: Convert to fraction form
3,723,442.68/5,138,371.50 = 2,091,918.84/x - Step 3: Cross multiply
3,723,442.68x = 5,138,371.50 × 2,091,918.84 - Step 4: Simplify right side
3,723,442.68x = 10,749,056,147,769.06 - Step 5: Solve for x
x = 10,749,056,147,769.06/3,723,442.68 - Step 6: Final answer
x = 2,886,859.57
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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.