Finding the Fourth Proportional to 31,663,126.09, 43,695,198.12 and 17,176,438.09
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Solution
The fourth proportional to 31,663,126.09, 43,695,198.12 and 17,176,438.09 is: 23,703,530.19
Step by Step Solution
- Step 1: Write the proportion equation
31,663,126.09 : 43,695,198.12 = 17,176,438.09 : x - Step 2: Convert to fraction form
31,663,126.09/43,695,198.12 = 17,176,438.09/x - Step 3: Cross multiply
31,663,126.09x = 43,695,198.12 × 17,176,438.09 - Step 4: Simplify right side
31,663,126.09x = 750,527,865,338,464.38 - Step 5: Solve for x
x = 750,527,865,338,464.38/31,663,126.09 - Step 6: Final answer
x = 23,703,530.19
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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.