Finding the Fourth Proportional to 6,426,154.08, 9,638,836.74 and 2,639,538.72
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Solution
The fourth proportional to 6,426,154.08, 9,638,836.74 and 2,639,538.72 is: 3,959,146.09
Step by Step Solution
- Step 1: Write the proportion equation
6,426,154.08 : 9,638,836.74 = 2,639,538.72 : x - Step 2: Convert to fraction form
6,426,154.08/9,638,836.74 = 2,639,538.72/x - Step 3: Cross multiply
6,426,154.08x = 9,638,836.74 × 2,639,538.72 - Step 4: Simplify right side
6,426,154.08x = 25,442,082,790,988.57 - Step 5: Solve for x
x = 25,442,082,790,988.57/6,426,154.08 - Step 6: Final answer
x = 3,959,146.09
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1.5x scale
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.