Finding the Fourth Proportional to 5,415,028.80, 8,122,543.20 and 4,827,163.20
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Solution
The fourth proportional to 5,415,028.80, 8,122,543.20 and 4,827,163.20 is: 7,240,744.80
Step by Step Solution
- Step 1: Write the proportion equation
5,415,028.80 : 8,122,543.20 = 4,827,163.20 : x - Step 2: Convert to fraction form
5,415,028.80/8,122,543.20 = 4,827,163.20/x - Step 3: Cross multiply
5,415,028.80x = 8,122,543.20 × 4,827,163.20 - Step 4: Simplify right side
5,415,028.80x = 39,208,841,625,450.24 - Step 5: Solve for x
x = 39,208,841,625,450.24/5,415,028.80 - Step 6: Final answer
x = 7,240,744.80
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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.