Finding the Fourth Proportional to 20,702,741.68, 28,568,617.67 and 11,410,283.59
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Solution
The fourth proportional to 20,702,741.68, 28,568,617.67 and 11,410,283.59 is: 15,745,548.80
Step by Step Solution
- Step 1: Write the proportion equation
20,702,741.68 : 28,568,617.67 = 11,410,283.59 : x - Step 2: Convert to fraction form
20,702,741.68/28,568,617.67 = 11,410,283.59/x - Step 3: Cross multiply
20,702,741.68x = 28,568,617.67 × 11,410,283.59 - Step 4: Simplify right side
20,702,741.68x = 325,976,029,388,985.06 - Step 5: Solve for x
x = 325,976,029,388,985.06/20,702,741.68 - Step 6: Final answer
x = 15,745,548.80
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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.