Finding the Fourth Proportional to 7,438,486.67, 10,266,147.51 and 4,131,523.97
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Solution
The fourth proportional to 7,438,486.67, 10,266,147.51 and 4,131,523.97 is: 5,702,078.45
Step by Step Solution
- Step 1: Write the proportion equation
7,438,486.67 : 10,266,147.51 = 4,131,523.97 : x - Step 2: Convert to fraction form
7,438,486.67/10,266,147.51 = 4,131,523.97/x - Step 3: Cross multiply
7,438,486.67x = 10,266,147.51 × 4,131,523.97 - Step 4: Simplify right side
7,438,486.67x = 42,414,834,512,034.73 - Step 5: Solve for x
x = 42,414,834,512,034.73/7,438,486.67 - Step 6: Final answer
x = 5,702,078.45
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1.5x scale
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.