Finding the Fourth Proportional to 18,210,338.70, 27,266,560.32 and 13,871,721.09
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Solution
The fourth proportional to 18,210,338.70, 27,266,560.32 and 13,871,721.09 is: 20,770,295.72
Step by Step Solution
- Step 1: Write the proportion equation
18,210,338.70 : 27,266,560.32 = 13,871,721.09 : x - Step 2: Convert to fraction form
18,210,338.70/27,266,560.32 = 13,871,721.09/x - Step 3: Cross multiply
18,210,338.70x = 27,266,560.32 × 13,871,721.09 - Step 4: Simplify right side
18,210,338.70x = 378,234,119,996,969.69 - Step 5: Solve for x
x = 378,234,119,996,969.69/18,210,338.70 - Step 6: Final answer
x = 20,770,295.72
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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.