Finding the Fourth Proportional to 7,213,642.24, 9,954,704.64 and 3,994,309.12
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Solution
The fourth proportional to 7,213,642.24, 9,954,704.64 and 3,994,309.12 is: 5,512,079.23
Step by Step Solution
- Step 1: Write the proportion equation
7,213,642.24 : 9,954,704.64 = 3,994,309.12 : x - Step 2: Convert to fraction form
7,213,642.24/9,954,704.64 = 3,994,309.12/x - Step 3: Cross multiply
7,213,642.24x = 9,954,704.64 × 3,994,309.12 - Step 4: Simplify right side
7,213,642.24x = 39,762,167,530,458.32 - Step 5: Solve for x
x = 39,762,167,530,458.32/7,213,642.24 - Step 6: Final answer
x = 5,512,079.23
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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.