Finding the Fourth Proportional to 18,821,633.80, 28,253,445.90 and 17,588,165.80
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Solution
The fourth proportional to 18,821,633.80, 28,253,445.90 and 17,588,165.80 is: 26,401,867.99
Step by Step Solution
- Step 1: Write the proportion equation
18,821,633.80 : 28,253,445.90 = 17,588,165.80 : x - Step 2: Convert to fraction form
18,821,633.80/28,253,445.90 = 17,588,165.80/x - Step 3: Cross multiply
18,821,633.80x = 28,253,445.90 × 17,588,165.80 - Step 4: Simplify right side
18,821,633.80x = 496,926,290,910,530.19 - Step 5: Solve for x
x = 496,926,290,910,530.19/18,821,633.80 - Step 6: Final answer
x = 26,401,867.99
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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.