Finding the Fourth Proportional to 3,965,698.80, 5,472,699 and 2,154,862.80
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Solution
The fourth proportional to 3,965,698.80, 5,472,699 and 2,154,862.80 is: 2,973,729.50
Step by Step Solution
- Step 1: Write the proportion equation
3,965,698.80 : 5,472,699 = 2,154,862.80 : x - Step 2: Convert to fraction form
3,965,698.80/5,472,699 = 2,154,862.80/x - Step 3: Cross multiply
3,965,698.80x = 5,472,699 × 2,154,862.80 - Step 4: Simplify right side
3,965,698.80x = 11,792,915,490,697.20 - Step 5: Solve for x
x = 11,792,915,490,697.20/3,965,698.80 - Step 6: Final answer
x = 2,973,729.50
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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.