Finding the Fourth Proportional to 10,102,615.20, 13,942,106.64 and 5,751,787.68
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Solution
The fourth proportional to 10,102,615.20, 13,942,106.64 and 5,751,787.68 is: 7,937,750.34
Step by Step Solution
- Step 1: Write the proportion equation
10,102,615.20 : 13,942,106.64 = 5,751,787.68 : x - Step 2: Convert to fraction form
10,102,615.20/13,942,106.64 = 5,751,787.68/x - Step 3: Cross multiply
10,102,615.20x = 13,942,106.64 × 5,751,787.68 - Step 4: Simplify right side
10,102,615.20x = 80,192,037,205,198.19 - Step 5: Solve for x
x = 80,192,037,205,198.19/10,102,615.20 - Step 6: Final answer
x = 7,937,750.34
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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.