Finding the Fourth Proportional to 5,728,979.88, 7,905,834.36 and 3,150,660.60
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Solution
The fourth proportional to 5,728,979.88, 7,905,834.36 and 3,150,660.60 is: 4,347,824.80
Step by Step Solution
- Step 1: Write the proportion equation
5,728,979.88 : 7,905,834.36 = 3,150,660.60 : x - Step 2: Convert to fraction form
5,728,979.88/7,905,834.36 = 3,150,660.60/x - Step 3: Cross multiply
5,728,979.88x = 7,905,834.36 × 3,150,660.60 - Step 4: Simplify right side
5,728,979.88x = 24,908,600,828,178.22 - Step 5: Solve for x
x = 24,908,600,828,178.22/5,728,979.88 - Step 6: Final answer
x = 4,347,824.80
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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.