Finding the Fourth Proportional to 87,047,651.16, 120,125,757.87 and 47,888,587.53
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Solution
The fourth proportional to 87,047,651.16, 120,125,757.87 and 47,888,587.53 is: 66,086,250.39
Step by Step Solution
- Step 1: Write the proportion equation
87,047,651.16 : 120,125,757.87 = 47,888,587.53 : x - Step 2: Convert to fraction form
87,047,651.16/120,125,757.87 = 47,888,587.53/x - Step 3: Cross multiply
87,047,651.16x = 120,125,757.87 × 47,888,587.53 - Step 4: Simplify right side
87,047,651.16x = 5,752,652,870,365,082 - Step 5: Solve for x
x = 5,752,652,870,365,082/87,047,651.16 - Step 6: Final answer
x = 66,086,250.39
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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.