Finding the Fourth Proportional to 7,867,620.48, 11,803,530.84 and 2,819,441.28
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Solution
The fourth proportional to 7,867,620.48, 11,803,530.84 and 2,819,441.28 is: 4,229,914.52
Step by Step Solution
- Step 1: Write the proportion equation
7,867,620.48 : 11,803,530.84 = 2,819,441.28 : x - Step 2: Convert to fraction form
7,867,620.48/11,803,530.84 = 2,819,441.28/x - Step 3: Cross multiply
7,867,620.48x = 11,803,530.84 × 2,819,441.28 - Step 4: Simplify right side
7,867,620.48x = 33,279,362,100,049.07 - Step 5: Solve for x
x = 33,279,362,100,049.07/7,867,620.48 - Step 6: Final answer
x = 4,229,914.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.