Finding the Fourth Proportional to 13,335,306.68, 18,405,683.72 and 8,107,203.94
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Solution
The fourth proportional to 13,335,306.68, 18,405,683.72 and 8,107,203.94 is: 11,189,741.27
Step by Step Solution
- Step 1: Write the proportion equation
13,335,306.68 : 18,405,683.72 = 8,107,203.94 : x - Step 2: Convert to fraction form
13,335,306.68/18,405,683.72 = 8,107,203.94/x - Step 3: Cross multiply
13,335,306.68x = 18,405,683.72 × 8,107,203.94 - Step 4: Simplify right side
13,335,306.68x = 149,218,631,501,473.09 - Step 5: Solve for x
x = 149,218,631,501,473.09/13,335,306.68 - Step 6: Final answer
x = 11,189,741.27
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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.