Finding the Fourth Proportional to 9,119,169.42, 12,582,790.07 and 5,198,758.62
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Solution
The fourth proportional to 9,119,169.42, 12,582,790.07 and 5,198,758.62 is: 7,173,338.42
Step by Step Solution
- Step 1: Write the proportion equation
9,119,169.42 : 12,582,790.07 = 5,198,758.62 : x - Step 2: Convert to fraction form
9,119,169.42/12,582,790.07 = 5,198,758.62/x - Step 3: Cross multiply
9,119,169.42x = 12,582,790.07 × 5,198,758.62 - Step 4: Simplify right side
9,119,169.42x = 65,414,888,314,069.11 - Step 5: Solve for x
x = 65,414,888,314,069.11/9,119,169.42 - Step 6: Final answer
x = 7,173,338.42
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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.