Finding the Fourth Proportional to 39,302,866.04, 54,235,741.84 and 21,661,715.13
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Solution
The fourth proportional to 39,302,866.04, 54,235,741.84 and 21,661,715.13 is: 29,891,947.03
Step by Step Solution
- Step 1: Write the proportion equation
39,302,866.04 : 54,235,741.84 = 21,661,715.13 : x - Step 2: Convert to fraction form
39,302,866.04/54,235,741.84 = 21,661,715.13/x - Step 3: Cross multiply
39,302,866.04x = 54,235,741.84 × 21,661,715.13 - Step 4: Simplify right side
39,302,866.04x = 1,174,839,189,548,147.75 - Step 5: Solve for x
x = 1,174,839,189,548,147.75/39,302,866.04 - Step 6: Final answer
x = 29,891,947.03
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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.