Finding the Fourth Proportional to 17,218,811.35, 23,762,409.87 and 9,378,620.92
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Solution
The fourth proportional to 17,218,811.35, 23,762,409.87 and 9,378,620.92 is: 12,942,742.09
Step by Step Solution
- Step 1: Write the proportion equation
17,218,811.35 : 23,762,409.87 = 9,378,620.92 : x - Step 2: Convert to fraction form
17,218,811.35/23,762,409.87 = 9,378,620.92/x - Step 3: Cross multiply
17,218,811.35x = 23,762,409.87 × 9,378,620.92 - Step 4: Simplify right side
17,218,811.35x = 222,858,634,316,396.50 - Step 5: Solve for x
x = 222,858,634,316,396.50/17,218,811.35 - Step 6: Final answer
x = 12,942,742.09
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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.