Finding the Fourth Proportional to 5,166,620.20, 7,129,929.22 and 3,205,768.96
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Solution
The fourth proportional to 5,166,620.20, 7,129,929.22 and 3,205,768.96 is: 4,423,957.03
Step by Step Solution
- Step 1: Write the proportion equation
5,166,620.20 : 7,129,929.22 = 3,205,768.96 : x - Step 2: Convert to fraction form
5,166,620.20/7,129,929.22 = 3,205,768.96/x - Step 3: Cross multiply
5,166,620.20x = 7,129,929.22 × 3,205,768.96 - Step 4: Simplify right side
5,166,620.20x = 22,856,905,781,371.00 - Step 5: Solve for x
x = 22,856,905,781,371.00/5,166,620.20 - Step 6: Final answer
x = 4,423,957.03
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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.