Finding the Fourth Proportional to 3,868,722.88, 5,338,675.92 and 2,149,828
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Solution
The fourth proportional to 3,868,722.88, 5,338,675.92 and 2,149,828 is: 2,966,672.81
Step by Step Solution
- Step 1: Write the proportion equation
3,868,722.88 : 5,338,675.92 = 2,149,828 : x - Step 2: Convert to fraction form
3,868,722.88/5,338,675.92 = 2,149,828/x - Step 3: Cross multiply
3,868,722.88x = 5,338,675.92 × 2,149,828 - Step 4: Simplify right side
3,868,722.88x = 11,477,234,975,741.76 - Step 5: Solve for x
x = 11,477,234,975,741.76/3,868,722.88 - Step 6: Final answer
x = 2,966,672.81
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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.