Finding the Fourth Proportional to 13,347,484.56, 18,419,673.80 and 7,841,091.48
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Solution
The fourth proportional to 13,347,484.56, 18,419,673.80 and 7,841,091.48 is: 10,820,791.49
Step by Step Solution
- Step 1: Write the proportion equation
13,347,484.56 : 18,419,673.80 = 7,841,091.48 : x - Step 2: Convert to fraction form
13,347,484.56/18,419,673.80 = 7,841,091.48/x - Step 3: Cross multiply
13,347,484.56x = 18,419,673.80 × 7,841,091.48 - Step 4: Simplify right side
13,347,484.56x = 144,430,347,297,559.25 - Step 5: Solve for x
x = 144,430,347,297,559.25/13,347,484.56 - Step 6: Final answer
x = 10,820,791.49
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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.