Finding the Fourth Proportional to 6,505,536.20, 8,981,720.67 and 4,186,457.95
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Solution
The fourth proportional to 6,505,536.20, 8,981,720.67 and 4,186,457.95 is: 5,779,937.99
Step by Step Solution
- Step 1: Write the proportion equation
6,505,536.20 : 8,981,720.67 = 4,186,457.95 : x - Step 2: Convert to fraction form
6,505,536.20/8,981,720.67 = 4,186,457.95/x - Step 3: Cross multiply
6,505,536.20x = 8,981,720.67 × 4,186,457.95 - Step 4: Simplify right side
6,505,536.20x = 37,601,595,858,692.22 - Step 5: Solve for x
x = 37,601,595,858,692.22/6,505,536.20 - Step 6: Final answer
x = 5,779,937.99
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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.