Finding the Fourth Proportional to 18,145,509.80, 27,218,264.70 and 16,019,745.80
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Solution
The fourth proportional to 18,145,509.80, 27,218,264.70 and 16,019,745.80 is: 24,029,618.70
Step by Step Solution
- Step 1: Write the proportion equation
18,145,509.80 : 27,218,264.70 = 16,019,745.80 : x - Step 2: Convert to fraction form
18,145,509.80/27,218,264.70 = 16,019,745.80/x - Step 3: Cross multiply
18,145,509.80x = 27,218,264.70 × 16,019,745.80 - Step 4: Simplify right side
18,145,509.80x = 436,029,681,611,113.25 - Step 5: Solve for x
x = 436,029,681,611,113.25/18,145,509.80 - Step 6: Final answer
x = 24,029,618.70
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1.5x scale
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.