Finding the Fourth Proportional to 18,184,489.20, 25,102,778.85 and 11,993,208.84
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Solution
The fourth proportional to 18,184,489.20, 25,102,778.85 and 11,993,208.84 is: 16,556,025.63
Step by Step Solution
- Step 1: Write the proportion equation
18,184,489.20 : 25,102,778.85 = 11,993,208.84 : x - Step 2: Convert to fraction form
18,184,489.20/25,102,778.85 = 11,993,208.84/x - Step 3: Cross multiply
18,184,489.20x = 25,102,778.85 × 11,993,208.84 - Step 4: Simplify right side
18,184,489.20x = 301,062,869,212,385.06 - Step 5: Solve for x
x = 301,062,869,212,385.06/18,184,489.20 - Step 6: Final answer
x = 16,556,025.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.