Finding the Fourth Proportional to 7,286,836.20, 10,930,254.30 and 2,238,138.60
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Solution
The fourth proportional to 7,286,836.20, 10,930,254.30 and 2,238,138.60 is: 3,357,207.90
Step by Step Solution
- Step 1: Write the proportion equation
7,286,836.20 : 10,930,254.30 = 2,238,138.60 : x - Step 2: Convert to fraction form
7,286,836.20/10,930,254.30 = 2,238,138.60/x - Step 3: Cross multiply
7,286,836.20x = 10,930,254.30 × 2,238,138.60 - Step 4: Simplify right side
7,286,836.20x = 24,463,424,056,645.98 - Step 5: Solve for x
x = 24,463,424,056,645.98/7,286,836.20 - Step 6: Final answer
x = 3,357,207.90
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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.