Finding the Fourth Proportional to 18,148,505.67, 27,235,331.33 and 7,217,575.11
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Solution
The fourth proportional to 18,148,505.67, 27,235,331.33 and 7,217,575.11 is: 10,831,362.82
Step by Step Solution
- Step 1: Write the proportion equation
18,148,505.67 : 27,235,331.33 = 7,217,575.11 : x - Step 2: Convert to fraction form
18,148,505.67/27,235,331.33 = 7,217,575.11/x - Step 3: Cross multiply
18,148,505.67x = 27,235,331.33 × 7,217,575.11 - Step 4: Simplify right side
18,148,505.67x = 196,573,049,483,923.31 - Step 5: Solve for x
x = 196,573,049,483,923.31/18,148,505.67 - Step 6: Final answer
x = 10,831,362.82
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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.