Finding the Fourth Proportional to 6,668,390.16, 9,198,996.12 and 4,216,870.08
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Solution
The fourth proportional to 6,668,390.16, 9,198,996.12 and 4,216,870.08 is: 5,817,141.85
Step by Step Solution
- Step 1: Write the proportion equation
6,668,390.16 : 9,198,996.12 = 4,216,870.08 : x - Step 2: Convert to fraction form
6,668,390.16/9,198,996.12 = 4,216,870.08/x - Step 3: Cross multiply
6,668,390.16x = 9,198,996.12 × 4,216,870.08 - Step 4: Simplify right side
6,668,390.16x = 38,790,971,504,464.09 - Step 5: Solve for x
x = 38,790,971,504,464.09/6,668,390.16 - Step 6: Final answer
x = 5,817,141.85
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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.