Finding the Fourth Proportional to 5,263,933.40, 7,889,995.20 and 2,990,546.90
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Solution
The fourth proportional to 5,263,933.40, 7,889,995.20 and 2,990,546.90 is: 4,482,465.66
Step by Step Solution
- Step 1: Write the proportion equation
5,263,933.40 : 7,889,995.20 = 2,990,546.90 : x - Step 2: Convert to fraction form
5,263,933.40/7,889,995.20 = 2,990,546.90/x - Step 3: Cross multiply
5,263,933.40x = 7,889,995.20 × 2,990,546.90 - Step 4: Simplify right side
5,263,933.40x = 23,595,400,686,374.88 - Step 5: Solve for x
x = 23,595,400,686,374.88/5,263,933.40 - Step 6: Final answer
x = 4,482,465.66
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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.