Finding the Fourth Proportional to 7,867,853.40, 11,804,544.90 and 2,819,328.60
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Solution
The fourth proportional to 7,867,853.40, 11,804,544.90 and 2,819,328.60 is: 4,229,983.63
Step by Step Solution
- Step 1: Write the proportion equation
7,867,853.40 : 11,804,544.90 = 2,819,328.60 : x - Step 2: Convert to fraction form
7,867,853.40/11,804,544.90 = 2,819,328.60/x - Step 3: Cross multiply
7,867,853.40x = 11,804,544.90 × 2,819,328.60 - Step 4: Simplify right side
7,867,853.40x = 33,280,891,046,554.14 - Step 5: Solve for x
x = 33,280,891,046,554.14/7,867,853.40 - Step 6: Final answer
x = 4,229,983.63
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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.