Finding the Fourth Proportional to 5,541,646.40, 8,312,469.60 and 5,205,723.20
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Solution
The fourth proportional to 5,541,646.40, 8,312,469.60 and 5,205,723.20 is: 7,808,584.80
Step by Step Solution
- Step 1: Write the proportion equation
5,541,646.40 : 8,312,469.60 = 5,205,723.20 : x - Step 2: Convert to fraction form
5,541,646.40/8,312,469.60 = 5,205,723.20/x - Step 3: Cross multiply
5,541,646.40x = 8,312,469.60 × 5,205,723.20 - Step 4: Simplify right side
5,541,646.40x = 43,272,415,846,014.72 - Step 5: Solve for x
x = 43,272,415,846,014.72/5,541,646.40 - Step 6: Final answer
x = 7,808,584.80
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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.