Finding the Fourth Proportional to 3,688,778.19, 5,090,503.68 and 2,057,187.09
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Solution
The fourth proportional to 3,688,778.19, 5,090,503.68 and 2,057,187.09 is: 2,838,912.48
Step by Step Solution
- Step 1: Write the proportion equation
3,688,778.19 : 5,090,503.68 = 2,057,187.09 : x - Step 2: Convert to fraction form
3,688,778.19/5,090,503.68 = 2,057,187.09/x - Step 3: Cross multiply
3,688,778.19x = 5,090,503.68 × 2,057,187.09 - Step 4: Simplify right side
3,688,778.19x = 10,472,118,452,093.49 - Step 5: Solve for x
x = 10,472,118,452,093.49/3,688,778.19 - Step 6: Final answer
x = 2,838,912.48
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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.