Finding the Fourth Proportional to 3,702,840.87, 5,107,863.33 and 2,153,928.18
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Solution
The fourth proportional to 3,702,840.87, 5,107,863.33 and 2,153,928.18 is: 2,971,224.30
Step by Step Solution
- Step 1: Write the proportion equation
3,702,840.87 : 5,107,863.33 = 2,153,928.18 : x - Step 2: Convert to fraction form
3,702,840.87/5,107,863.33 = 2,153,928.18/x - Step 3: Cross multiply
3,702,840.87x = 5,107,863.33 × 2,153,928.18 - Step 4: Simplify right side
3,702,840.87x = 11,001,970,766,075.64 - Step 5: Solve for x
x = 11,001,970,766,075.64/3,702,840.87 - Step 6: Final answer
x = 2,971,224.30
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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.