Finding the Fourth Proportional to 36,385,405.20, 54,578,107.80 and 18,192,408.30
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Solution
The fourth proportional to 36,385,405.20, 54,578,107.80 and 18,192,408.30 is: 27,288,612.45
Step by Step Solution
- Step 1: Write the proportion equation
36,385,405.20 : 54,578,107.80 = 18,192,408.30 : x - Step 2: Convert to fraction form
36,385,405.20/54,578,107.80 = 18,192,408.30/x - Step 3: Cross multiply
36,385,405.20x = 54,578,107.80 × 18,192,408.30 - Step 4: Simplify right side
36,385,405.20x = 992,907,221,339,014.75 - Step 5: Solve for x
x = 992,907,221,339,014.75/36,385,405.20 - Step 6: Final answer
x = 27,288,612.45
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Similar ratio
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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.