Finding the Fourth Proportional to 12,288,021.84, 18,440,260.92 and 5,099,562.72
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Solution
The fourth proportional to 12,288,021.84, 18,440,260.92 and 5,099,562.72 is: 7,652,758.79
Step by Step Solution
- Step 1: Write the proportion equation
12,288,021.84 : 18,440,260.92 = 5,099,562.72 : x - Step 2: Convert to fraction form
12,288,021.84/18,440,260.92 = 5,099,562.72/x - Step 3: Cross multiply
12,288,021.84x = 18,440,260.92 × 5,099,562.72 - Step 4: Simplify right side
12,288,021.84x = 94,037,267,134,704.91 - Step 5: Solve for x
x = 94,037,267,134,704.91/12,288,021.84 - Step 6: Final answer
x = 7,652,758.79
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1.5x scale
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.