Finding the Fourth Proportional to 18,718,793.04, 28,060,252.20 and 7,921,240.56
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Solution
The fourth proportional to 18,718,793.04, 28,060,252.20 and 7,921,240.56 is: 11,874,270.28
Step by Step Solution
- Step 1: Write the proportion equation
18,718,793.04 : 28,060,252.20 = 7,921,240.56 : x - Step 2: Convert to fraction form
18,718,793.04/28,060,252.20 = 7,921,240.56/x - Step 3: Cross multiply
18,718,793.04x = 28,060,252.20 × 7,921,240.56 - Step 4: Simplify right side
18,718,793.04x = 222,272,007,850,469.22 - Step 5: Solve for x
x = 222,272,007,850,469.22/18,718,793.04 - Step 6: Final answer
x = 11,874,270.28
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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.