Finding the Fourth Proportional to 18,517,769.84, 27,794,582.69 and 8,939,868.95
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Solution
The fourth proportional to 18,517,769.84, 27,794,582.69 and 8,939,868.95 is: 13,418,458.54
Step by Step Solution
- Step 1: Write the proportion equation
18,517,769.84 : 27,794,582.69 = 8,939,868.95 : x - Step 2: Convert to fraction form
18,517,769.84/27,794,582.69 = 8,939,868.95/x - Step 3: Cross multiply
18,517,769.84x = 27,794,582.69 × 8,939,868.95 - Step 4: Simplify right side
18,517,769.84x = 248,479,926,768,538.47 - Step 5: Solve for x
x = 248,479,926,768,538.47/18,517,769.84 - Step 6: Final answer
x = 13,418,458.54
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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.