Finding the Fourth Proportional to 11,378,138.40, 17,042,324.40 and 8,833,831.20
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Solution
The fourth proportional to 11,378,138.40, 17,042,324.40 and 8,833,831.20 is: 13,231,427.82
Step by Step Solution
- Step 1: Write the proportion equation
11,378,138.40 : 17,042,324.40 = 8,833,831.20 : x - Step 2: Convert to fraction form
11,378,138.40/17,042,324.40 = 8,833,831.20/x - Step 3: Cross multiply
11,378,138.40x = 17,042,324.40 × 8,833,831.20 - Step 4: Simplify right side
11,378,138.40x = 150,549,017,005,241.25 - Step 5: Solve for x
x = 150,549,017,005,241.25/11,378,138.40 - Step 6: Final answer
x = 13,231,427.82
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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.