Finding the Fourth Proportional to 20,936,747.94, 31,376,391.30 and 13,246,626.18
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Solution
The fourth proportional to 20,936,747.94, 31,376,391.30 and 13,246,626.18 is: 19,851,761.49
Step by Step Solution
- Step 1: Write the proportion equation
20,936,747.94 : 31,376,391.30 = 13,246,626.18 : x - Step 2: Convert to fraction form
20,936,747.94/31,376,391.30 = 13,246,626.18/x - Step 3: Cross multiply
20,936,747.94x = 31,376,391.30 × 13,246,626.18 - Step 4: Simplify right side
20,936,747.94x = 415,631,326,428,504.25 - Step 5: Solve for x
x = 415,631,326,428,504.25/20,936,747.94 - Step 6: Final answer
x = 19,851,761.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.