Finding the Fourth Proportional to 7,776,324.40, 11,664,486.60 and 2,385,806.80
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Solution
The fourth proportional to 7,776,324.40, 11,664,486.60 and 2,385,806.80 is: 3,578,710.20
Step by Step Solution
- Step 1: Write the proportion equation
7,776,324.40 : 11,664,486.60 = 2,385,806.80 : x - Step 2: Convert to fraction form
7,776,324.40/11,664,486.60 = 2,385,806.80/x - Step 3: Cross multiply
7,776,324.40x = 11,664,486.60 × 2,385,806.80 - Step 4: Simplify right side
7,776,324.40x = 27,829,211,448,788.88 - Step 5: Solve for x
x = 27,829,211,448,788.88/7,776,324.40 - Step 6: Final answer
x = 3,578,710.20
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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.