Finding the Fourth Proportional to 16,643,538.40, 24,910,011.60 and 12,081,618.40
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Solution
The fourth proportional to 16,643,538.40, 24,910,011.60 and 12,081,618.40 is: 18,082,287.99
Step by Step Solution
- Step 1: Write the proportion equation
16,643,538.40 : 24,910,011.60 = 12,081,618.40 : x - Step 2: Convert to fraction form
16,643,538.40/24,910,011.60 = 12,081,618.40/x - Step 3: Cross multiply
16,643,538.40x = 24,910,011.60 × 12,081,618.40 - Step 4: Simplify right side
16,643,538.40x = 300,953,254,490,773.44 - Step 5: Solve for x
x = 300,953,254,490,773.44/16,643,538.40 - Step 6: Final answer
x = 18,082,287.99
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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.