Finding the Fourth Proportional to 3,853,708.28, 5,318,117.52 and 2,134,940.12
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Solution
The fourth proportional to 3,853,708.28, 5,318,117.52 and 2,134,940.12 is: 2,946,217.42
Step by Step Solution
- Step 1: Write the proportion equation
3,853,708.28 : 5,318,117.52 = 2,134,940.12 : x - Step 2: Convert to fraction form
3,853,708.28/5,318,117.52 = 2,134,940.12/x - Step 3: Cross multiply
3,853,708.28x = 5,318,117.52 × 2,134,940.12 - Step 4: Simplify right side
3,853,708.28x = 11,353,862,456,322.90 - Step 5: Solve for x
x = 11,353,862,456,322.90/3,853,708.28 - Step 6: Final answer
x = 2,946,217.42
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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.