Finding the Fourth Proportional to 3,702,806.48, 5,107,815.41 and 2,153,893.82
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Solution
The fourth proportional to 3,702,806.48, 5,107,815.41 and 2,153,893.82 is: 2,971,176.61
Step by Step Solution
- Step 1: Write the proportion equation
3,702,806.48 : 5,107,815.41 = 2,153,893.82 : x - Step 2: Convert to fraction form
3,702,806.48/5,107,815.41 = 2,153,893.82/x - Step 3: Cross multiply
3,702,806.48x = 5,107,815.41 × 2,153,893.82 - Step 4: Simplify right side
3,702,806.48x = 11,001,692,008,991.22 - Step 5: Solve for x
x = 11,001,692,008,991.22/3,702,806.48 - Step 6: Final answer
x = 2,971,176.61
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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.