Finding the Fourth Proportional to 11,081,936.20, 15,291,906.42 and 6,434,812.84
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Solution
The fourth proportional to 11,081,936.20, 15,291,906.42 and 6,434,812.84 is: 8,879,364.94
Step by Step Solution
- Step 1: Write the proportion equation
11,081,936.20 : 15,291,906.42 = 6,434,812.84 : x - Step 2: Convert to fraction form
11,081,936.20/15,291,906.42 = 6,434,812.84/x - Step 3: Cross multiply
11,081,936.20x = 15,291,906.42 × 6,434,812.84 - Step 4: Simplify right side
11,081,936.20x = 98,400,555,779,494.44 - Step 5: Solve for x
x = 98,400,555,779,494.44/11,081,936.20 - Step 6: Final answer
x = 8,879,364.94
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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.