Finding the Fourth Proportional to 6,286,974.75, 8,676,025.16 and 3,425,406.75
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Solution
The fourth proportional to 6,286,974.75, 8,676,025.16 and 3,425,406.75 is: 4,727,061.32
Step by Step Solution
- Step 1: Write the proportion equation
6,286,974.75 : 8,676,025.16 = 3,425,406.75 : x - Step 2: Convert to fraction form
6,286,974.75/8,676,025.16 = 3,425,406.75/x - Step 3: Cross multiply
6,286,974.75x = 8,676,025.16 × 3,425,406.75 - Step 4: Simplify right side
6,286,974.75x = 29,718,915,129,106.79 - Step 5: Solve for x
x = 29,718,915,129,106.79/6,286,974.75 - Step 6: Final answer
x = 4,727,061.32
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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.