Finding the Fourth Proportional to 18,850,573.80, 28,275,860.70 and 9,284,635.80
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Solution
The fourth proportional to 18,850,573.80, 28,275,860.70 and 9,284,635.80 is: 13,926,953.70
Step by Step Solution
- Step 1: Write the proportion equation
18,850,573.80 : 28,275,860.70 = 9,284,635.80 : x - Step 2: Convert to fraction form
18,850,573.80/28,275,860.70 = 9,284,635.80/x - Step 3: Cross multiply
18,850,573.80x = 28,275,860.70 × 9,284,635.80 - Step 4: Simplify right side
18,850,573.80x = 262,531,068,531,033.06 - Step 5: Solve for x
x = 262,531,068,531,033.06/18,850,573.80 - Step 6: Final answer
x = 13,926,953.70
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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.