Finding the Fourth Proportional to 13,121,048.98, 18,104,804.67 and 7,613,161.30
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Solution
The fourth proportional to 13,121,048.98, 18,104,804.67 and 7,613,161.30 is: 10,504,861.19
Step by Step Solution
- Step 1: Write the proportion equation
13,121,048.98 : 18,104,804.67 = 7,613,161.30 : x - Step 2: Convert to fraction form
13,121,048.98/18,104,804.67 = 7,613,161.30/x - Step 3: Cross multiply
13,121,048.98x = 18,104,804.67 × 7,613,161.30 - Step 4: Simplify right side
13,121,048.98x = 137,834,798,257,703.28 - Step 5: Solve for x
x = 137,834,798,257,703.28/13,121,048.98 - Step 6: Final answer
x = 10,504,861.19
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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.