Finding the Fourth Proportional to 4,039,687.12, 5,574,765.18 and 2,228,851.12
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Solution
The fourth proportional to 4,039,687.12, 5,574,765.18 and 2,228,851.12 is: 3,075,812.87
Step by Step Solution
- Step 1: Write the proportion equation
4,039,687.12 : 5,574,765.18 = 2,228,851.12 : x - Step 2: Convert to fraction form
4,039,687.12/5,574,765.18 = 2,228,851.12/x - Step 3: Cross multiply
4,039,687.12x = 5,574,765.18 × 2,228,851.12 - Step 4: Simplify right side
4,039,687.12x = 12,425,321,615,180.00 - Step 5: Solve for x
x = 12,425,321,615,180.00/4,039,687.12 - Step 6: Final answer
x = 3,075,812.87
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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.