Finding the Fourth Proportional to 18,911,232.80, 28,324,858.80 and 15,552,000.80
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Solution
The fourth proportional to 18,911,232.80, 28,324,858.80 and 15,552,000.80 is: 23,293,469.62
Step by Step Solution
- Step 1: Write the proportion equation
18,911,232.80 : 28,324,858.80 = 15,552,000.80 : x - Step 2: Convert to fraction form
18,911,232.80/28,324,858.80 = 15,552,000.80/x - Step 3: Cross multiply
18,911,232.80x = 28,324,858.80 × 15,552,000.80 - Step 4: Simplify right side
18,911,232.80x = 440,508,226,717,487.06 - Step 5: Solve for x
x = 440,508,226,717,487.06/18,911,232.80 - Step 6: Final answer
x = 23,293,469.62
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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.