Finding the Fourth Proportional to 20,896,296.30, 28,836,329.99 and 11,603,623.95
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Solution
The fourth proportional to 20,896,296.30, 28,836,329.99 and 11,603,623.95 is: 16,012,690.69
Step by Step Solution
- Step 1: Write the proportion equation
20,896,296.30 : 28,836,329.99 = 11,603,623.95 : x - Step 2: Convert to fraction form
20,896,296.30/28,836,329.99 = 11,603,623.95/x - Step 3: Cross multiply
20,896,296.30x = 28,836,329.99 × 11,603,623.95 - Step 4: Simplify right side
20,896,296.30x = 334,605,929,244,049.12 - Step 5: Solve for x
x = 334,605,929,244,049.12/20,896,296.30 - Step 6: Final answer
x = 16,012,690.69
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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.