Finding the Fourth Proportional to 213,125,907.80, 298,678,601.80 and 213,125,907.80
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Solution
The fourth proportional to 213,125,907.80, 298,678,601.80 and 213,125,907.80 is: 298,678,601.80
Step by Step Solution
- Step 1: Write the proportion equation
213,125,907.80 : 298,678,601.80 = 213,125,907.80 : x - Step 2: Convert to fraction form
213,125,907.80/298,678,601.80 = 213,125,907.80/x - Step 3: Cross multiply
213,125,907.80x = 298,678,601.80 × 213,125,907.80 - Step 4: Simplify right side
213,125,907.80x = 63,656,148,149,059,720 - Step 5: Solve for x
x = 63,656,148,149,059,720/213,125,907.80 - Step 6: Final answer
x = 298,678,601.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.