Finding the Fourth Proportional to 5,000,631.75, 6,899,471.85 and 3,140,247.87
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Solution
The fourth proportional to 5,000,631.75, 6,899,471.85 and 3,140,247.87 is: 4,332,662.92
Step by Step Solution
- Step 1: Write the proportion equation
5,000,631.75 : 6,899,471.85 = 3,140,247.87 : x - Step 2: Convert to fraction form
5,000,631.75/6,899,471.85 = 3,140,247.87/x - Step 3: Cross multiply
5,000,631.75x = 6,899,471.85 × 3,140,247.87 - Step 4: Simplify right side
5,000,631.75x = 21,666,051,781,087.46 - Step 5: Solve for x
x = 21,666,051,781,087.46/5,000,631.75 - Step 6: Final answer
x = 4,332,662.92
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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.