Finding the Fourth Proportional to 18,393,258.87, 27,589,749.90 and 4,745,245.05
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Solution
The fourth proportional to 18,393,258.87, 27,589,749.90 and 4,745,245.05 is: 7,117,831.87
Step by Step Solution
- Step 1: Write the proportion equation
18,393,258.87 : 27,589,749.90 = 4,745,245.05 : x - Step 2: Convert to fraction form
18,393,258.87/27,589,749.90 = 4,745,245.05/x - Step 3: Cross multiply
18,393,258.87x = 27,589,749.90 × 4,745,245.05 - Step 4: Simplify right side
18,393,258.87x = 130,920,124,143,712.98 - Step 5: Solve for x
x = 130,920,124,143,712.98/18,393,258.87 - Step 6: Final answer
x = 7,117,831.87
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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.