Finding the Fourth Proportional to 10,649,122.79, 15,980,872.11 and 4,171,394.84
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Solution
The fourth proportional to 10,649,122.79, 15,980,872.11 and 4,171,394.84 is: 6,259,907.86
Step by Step Solution
- Step 1: Write the proportion equation
10,649,122.79 : 15,980,872.11 = 4,171,394.84 : x - Step 2: Convert to fraction form
10,649,122.79/15,980,872.11 = 4,171,394.84/x - Step 3: Cross multiply
10,649,122.79x = 15,980,872.11 × 4,171,394.84 - Step 4: Simplify right side
10,649,122.79x = 66,662,527,378,449.55 - Step 5: Solve for x
x = 66,662,527,378,449.55/10,649,122.79 - Step 6: Final answer
x = 6,259,907.86
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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.