Finding the Fourth Proportional to 18,152,530.20, 27,228,139.20 and 7,369,526.70
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Solution
The fourth proportional to 18,152,530.20, 27,228,139.20 and 7,369,526.70 is: 11,054,023.69
Step by Step Solution
- Step 1: Write the proportion equation
18,152,530.20 : 27,228,139.20 = 7,369,526.70 : x - Step 2: Convert to fraction form
18,152,530.20/27,228,139.20 = 7,369,526.70/x - Step 3: Cross multiply
18,152,530.20x = 27,228,139.20 × 7,369,526.70 - Step 4: Simplify right side
18,152,530.20x = 200,658,498,825,716.62 - Step 5: Solve for x
x = 200,658,498,825,716.62/18,152,530.20 - Step 6: Final answer
x = 11,054,023.69
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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.