Finding the Fourth Proportional to 6,321,340.99, 8,723,473.58 and 3,420,731.60
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Solution
The fourth proportional to 6,321,340.99, 8,723,473.58 and 3,420,731.60 is: 4,720,622.05
Step by Step Solution
- Step 1: Write the proportion equation
6,321,340.99 : 8,723,473.58 = 3,420,731.60 : x - Step 2: Convert to fraction form
6,321,340.99/8,723,473.58 = 3,420,731.60/x - Step 3: Cross multiply
6,321,340.99x = 8,723,473.58 × 3,420,731.60 - Step 4: Simplify right side
6,321,340.99x = 29,840,661,676,150.10 - Step 5: Solve for x
x = 29,840,661,676,150.10/6,321,340.99 - Step 6: Final answer
x = 4,720,622.05
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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.