Finding the Fourth Proportional to 20,097,711.92, 27,728,585.84 and 11,395,201.52
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Solution
The fourth proportional to 20,097,711.92, 27,728,585.84 and 11,395,201.52 is: 15,721,830.66
Step by Step Solution
- Step 1: Write the proportion equation
20,097,711.92 : 27,728,585.84 = 11,395,201.52 : x - Step 2: Convert to fraction form
20,097,711.92/27,728,585.84 = 11,395,201.52/x - Step 3: Cross multiply
20,097,711.92x = 27,728,585.84 × 11,395,201.52 - Step 4: Simplify right side
20,097,711.92x = 315,972,823,511,418.44 - Step 5: Solve for x
x = 315,972,823,511,418.44/20,097,711.92 - Step 6: Final answer
x = 15,721,830.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.