Finding the Fourth Proportional to 5,638,201.40, 8,457,302.10 and 1,851,807.80
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Solution
The fourth proportional to 5,638,201.40, 8,457,302.10 and 1,851,807.80 is: 2,777,711.70
Step by Step Solution
- Step 1: Write the proportion equation
5,638,201.40 : 8,457,302.10 = 1,851,807.80 : x - Step 2: Convert to fraction form
5,638,201.40/8,457,302.10 = 1,851,807.80/x - Step 3: Cross multiply
5,638,201.40x = 8,457,302.10 × 1,851,807.80 - Step 4: Simplify right side
5,638,201.40x = 15,661,297,995,736.38 - Step 5: Solve for x
x = 15,661,297,995,736.38/5,638,201.40 - Step 6: Final answer
x = 2,777,711.70
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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.