Finding the Fourth Proportional to 5,478,288.21, 7,559,761.11 and 2,997,455.19
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Solution
The fourth proportional to 5,478,288.21, 7,559,761.11 and 2,997,455.19 is: 4,136,336.81
Step by Step Solution
- Step 1: Write the proportion equation
5,478,288.21 : 7,559,761.11 = 2,997,455.19 : x - Step 2: Convert to fraction form
5,478,288.21/7,559,761.11 = 2,997,455.19/x - Step 3: Cross multiply
5,478,288.21x = 7,559,761.11 × 2,997,455.19 - Step 4: Simplify right side
5,478,288.21x = 22,660,045,174,329.66 - Step 5: Solve for x
x = 22,660,045,174,329.66/5,478,288.21 - Step 6: Final answer
x = 4,136,336.81
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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.