Finding the Fourth Proportional to 5,133,882.81, 7,082,681.88 and 2,957,260.11
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Solution
The fourth proportional to 5,133,882.81, 7,082,681.88 and 2,957,260.11 is: 4,079,822.89
Step by Step Solution
- Step 1: Write the proportion equation
5,133,882.81 : 7,082,681.88 = 2,957,260.11 : x - Step 2: Convert to fraction form
5,133,882.81/7,082,681.88 = 2,957,260.11/x - Step 3: Cross multiply
5,133,882.81x = 7,082,681.88 × 2,957,260.11 - Step 4: Simplify right side
5,133,882.81x = 20,945,332,595,543.80 - Step 5: Solve for x
x = 20,945,332,595,543.80/5,133,882.81 - Step 6: Final answer
x = 4,079,822.89
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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.