Finding the Fourth Proportional to 18,245,715.50, 25,044,965.58 and 16,134,473.18
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Solution
The fourth proportional to 18,245,715.50, 25,044,965.58 and 16,134,473.18 is: 22,146,970.64
Step by Step Solution
- Step 1: Write the proportion equation
18,245,715.50 : 25,044,965.58 = 16,134,473.18 : x - Step 2: Convert to fraction form
18,245,715.50/25,044,965.58 = 16,134,473.18/x - Step 3: Cross multiply
18,245,715.50x = 25,044,965.58 × 16,134,473.18 - Step 4: Simplify right side
18,245,715.50x = 404,087,325,444,533.12 - Step 5: Solve for x
x = 404,087,325,444,533.12/18,245,715.50 - Step 6: Final answer
x = 22,146,970.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.