Finding the Fourth Proportional to 36,290,423.80, 54,435,635.70 and 12,355,895.80
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Solution
The fourth proportional to 36,290,423.80, 54,435,635.70 and 12,355,895.80 is: 18,533,843.70
Step by Step Solution
- Step 1: Write the proportion equation
36,290,423.80 : 54,435,635.70 = 12,355,895.80 : x - Step 2: Convert to fraction form
36,290,423.80/54,435,635.70 = 12,355,895.80/x - Step 3: Cross multiply
36,290,423.80x = 54,435,635.70 × 12,355,895.80 - Step 4: Simplify right side
36,290,423.80x = 672,601,042,515,960.12 - Step 5: Solve for x
x = 672,601,042,515,960.12/36,290,423.80 - Step 6: Final answer
x = 18,533,843.70
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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.