Finding the Fourth Proportional to 6,876,918.80, 10,315,378.20 and 3,289,692.06
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Solution
The fourth proportional to 6,876,918.80, 10,315,378.20 and 3,289,692.06 is: 4,934,538.09
Step by Step Solution
- Step 1: Write the proportion equation
6,876,918.80 : 10,315,378.20 = 3,289,692.06 : x - Step 2: Convert to fraction form
6,876,918.80/10,315,378.20 = 3,289,692.06/x - Step 3: Cross multiply
6,876,918.80x = 10,315,378.20 × 3,289,692.06 - Step 4: Simplify right side
6,876,918.80x = 33,934,417,760,437.09 - Step 5: Solve for x
x = 33,934,417,760,437.09/6,876,918.80 - Step 6: Final answer
x = 4,934,538.09
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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.