Finding the Fourth Proportional to 3,915,696.97, 5,403,223.56 and 2,173,439.79
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Solution
The fourth proportional to 3,915,696.97, 5,403,223.56 and 2,173,439.79 is: 2,999,103.65
Step by Step Solution
- Step 1: Write the proportion equation
3,915,696.97 : 5,403,223.56 = 2,173,439.79 : x - Step 2: Convert to fraction form
3,915,696.97/5,403,223.56 = 2,173,439.79/x - Step 3: Cross multiply
3,915,696.97x = 5,403,223.56 × 2,173,439.79 - Step 4: Simplify right side
3,915,696.97x = 11,743,581,056,870.53 - Step 5: Solve for x
x = 11,743,581,056,870.53/3,915,696.97 - Step 6: Final answer
x = 2,999,103.65
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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.