Finding the Fourth Proportional to 8,655,939.99, 12,986,509.68 and 2,590,869.78
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Solution
The fourth proportional to 8,655,939.99, 12,986,509.68 and 2,590,869.78 is: 3,887,082.80
Step by Step Solution
- Step 1: Write the proportion equation
8,655,939.99 : 12,986,509.68 = 2,590,869.78 : x - Step 2: Convert to fraction form
8,655,939.99/12,986,509.68 = 2,590,869.78/x - Step 3: Cross multiply
8,655,939.99x = 12,986,509.68 × 2,590,869.78 - Step 4: Simplify right side
8,655,939.99x = 33,646,355,477,589.47 - Step 5: Solve for x
x = 33,646,355,477,589.47/8,655,939.99 - Step 6: Final answer
x = 3,887,082.80
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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.