Finding the Fourth Proportional to 13,247,024.21, 18,278,213.79 and 7,739,334.88
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Solution
The fourth proportional to 13,247,024.21, 18,278,213.79 and 7,739,334.88 is: 10,678,716.61
Step by Step Solution
- Step 1: Write the proportion equation
13,247,024.21 : 18,278,213.79 = 7,739,334.88 : x - Step 2: Convert to fraction form
13,247,024.21/18,278,213.79 = 7,739,334.88/x - Step 3: Cross multiply
13,247,024.21x = 18,278,213.79 × 7,739,334.88 - Step 4: Simplify right side
13,247,024.21x = 141,461,217,512,370.97 - Step 5: Solve for x
x = 141,461,217,512,370.97/13,247,024.21 - Step 6: Final answer
x = 10,678,716.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.