Finding the Fourth Proportional to 10,288,676.99, 15,431,512.99 and 3,000,178.12
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Solution
The fourth proportional to 10,288,676.99, 15,431,512.99 and 3,000,178.12 is: 4,499,829.05
Step by Step Solution
- Step 1: Write the proportion equation
10,288,676.99 : 15,431,512.99 = 3,000,178.12 : x - Step 2: Convert to fraction form
10,288,676.99/15,431,512.99 = 3,000,178.12/x - Step 3: Cross multiply
10,288,676.99x = 15,431,512.99 × 3,000,178.12 - Step 4: Simplify right side
10,288,676.99x = 46,297,287,631,093.78 - Step 5: Solve for x
x = 46,297,287,631,093.78/10,288,676.99 - Step 6: Final answer
x = 4,499,829.05
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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.