Finding the Fourth Proportional to 18,346,877.70, 27,520,207.20 and 4,699,997.70
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Solution
The fourth proportional to 18,346,877.70, 27,520,207.20 and 4,699,997.70 is: 7,049,968.54
Step by Step Solution
- Step 1: Write the proportion equation
18,346,877.70 : 27,520,207.20 = 4,699,997.70 : x - Step 2: Convert to fraction form
18,346,877.70/27,520,207.20 = 4,699,997.70/x - Step 3: Cross multiply
18,346,877.70x = 27,520,207.20 × 4,699,997.70 - Step 4: Simplify right side
18,346,877.70x = 129,344,910,543,523.44 - Step 5: Solve for x
x = 129,344,910,543,523.44/18,346,877.70 - Step 6: Final answer
x = 7,049,968.54
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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.