Finding the Fourth Proportional to 7,729,286.40, 11,593,929.60 and 3,477,758.40
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Solution
The fourth proportional to 7,729,286.40, 11,593,929.60 and 3,477,758.40 is: 5,216,637.60
Step by Step Solution
- Step 1: Write the proportion equation
7,729,286.40 : 11,593,929.60 = 3,477,758.40 : x - Step 2: Convert to fraction form
7,729,286.40/11,593,929.60 = 3,477,758.40/x - Step 3: Cross multiply
7,729,286.40x = 11,593,929.60 × 3,477,758.40 - Step 4: Simplify right side
7,729,286.40x = 40,320,886,055,408.64 - Step 5: Solve for x
x = 40,320,886,055,408.64/7,729,286.40 - Step 6: Final answer
x = 5,216,637.60
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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.