Finding the Fourth Proportional to 129,345,107.60, 193,734,226.20 and 114,984,390.80
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Solution
The fourth proportional to 129,345,107.60, 193,734,226.20 and 114,984,390.80 is: 172,224,619.78
Step by Step Solution
- Step 1: Write the proportion equation
129,345,107.60 : 193,734,226.20 = 114,984,390.80 : x - Step 2: Convert to fraction form
129,345,107.60/193,734,226.20 = 114,984,390.80/x - Step 3: Cross multiply
129,345,107.60x = 193,734,226.20 × 114,984,390.80 - Step 4: Simplify right side
129,345,107.60x = 22,276,411,976,716,396 - Step 5: Solve for x
x = 22,276,411,976,716,396/129,345,107.60 - Step 6: Final answer
x = 172,224,619.78
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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.