Finding the Fourth Proportional to 36,385,612.20, 54,578,418.30 and 18,192,615.30
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Solution
The fourth proportional to 36,385,612.20, 54,578,418.30 and 18,192,615.30 is: 27,288,922.95
Step by Step Solution
- Step 1: Write the proportion equation
36,385,612.20 : 54,578,418.30 = 18,192,615.30 : x - Step 2: Convert to fraction form
36,385,612.20/54,578,418.30 = 18,192,615.30/x - Step 3: Cross multiply
36,385,612.20x = 54,578,418.30 × 18,192,615.30 - Step 4: Simplify right side
36,385,612.20x = 992,924,167,814,380 - Step 5: Solve for x
x = 992,924,167,814,380/36,385,612.20 - Step 6: Final answer
x = 27,288,922.95
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Double scale
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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.