Finding the Fourth Proportional to 61,190,007.10, 91,758,438.60 and 20,233,620.70
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Solution
The fourth proportional to 61,190,007.10, 91,758,438.60 and 20,233,620.70 is: 30,341,644.50
Step by Step Solution
- Step 1: Write the proportion equation
61,190,007.10 : 91,758,438.60 = 20,233,620.70 : x - Step 2: Convert to fraction form
61,190,007.10/91,758,438.60 = 20,233,620.70/x - Step 3: Cross multiply
61,190,007.10x = 91,758,438.60 × 20,233,620.70 - Step 4: Simplify right side
61,190,007.10x = 1,856,605,442,656,638.75 - Step 5: Solve for x
x = 1,856,605,442,656,638.75/61,190,007.10 - Step 6: Final answer
x = 30,341,644.50
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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.