Finding the Fourth Proportional to 215,823,176.80, 324,070,688.40 and 125,123,912.80
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Solution
The fourth proportional to 215,823,176.80, 324,070,688.40 and 125,123,912.80 is: 187,880,621.34
Step by Step Solution
- Step 1: Write the proportion equation
215,823,176.80 : 324,070,688.40 = 125,123,912.80 : x - Step 2: Convert to fraction form
215,823,176.80/324,070,688.40 = 125,123,912.80/x - Step 3: Cross multiply
215,823,176.80x = 324,070,688.40 × 125,123,912.80 - Step 4: Simplify right side
215,823,176.80x = 40,548,992,556,397,568 - Step 5: Solve for x
x = 40,548,992,556,397,568/215,823,176.80 - Step 6: Final answer
x = 187,880,621.34
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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.