Finding the Fourth Proportional to 18,208,171.70, 27,294,505.86 and 7,275,102.20
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Solution
The fourth proportional to 18,208,171.70, 27,294,505.86 and 7,275,102.20 is: 10,905,560.59
Step by Step Solution
- Step 1: Write the proportion equation
18,208,171.70 : 27,294,505.86 = 7,275,102.20 : x - Step 2: Convert to fraction form
18,208,171.70/27,294,505.86 = 7,275,102.20/x - Step 3: Cross multiply
18,208,171.70x = 27,294,505.86 × 7,275,102.20 - Step 4: Simplify right side
18,208,171.70x = 198,570,319,629,998.91 - Step 5: Solve for x
x = 198,570,319,629,998.91/18,208,171.70 - Step 6: Final answer
x = 10,905,560.59
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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.