Finding the Fourth Proportional to 18,235,548.09, 27,309,487.23 and 10,430,807.94
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Solution
The fourth proportional to 18,235,548.09, 27,309,487.23 and 10,430,807.94 is: 15,621,138.17
Step by Step Solution
- Step 1: Write the proportion equation
18,235,548.09 : 27,309,487.23 = 10,430,807.94 : x - Step 2: Convert to fraction form
18,235,548.09/27,309,487.23 = 10,430,807.94/x - Step 3: Cross multiply
18,235,548.09x = 27,309,487.23 × 10,430,807.94 - Step 4: Simplify right side
18,235,548.09x = 284,860,016,236,012.62 - Step 5: Solve for x
x = 284,860,016,236,012.62/18,235,548.09 - Step 6: Final answer
x = 15,621,138.17
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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.