Finding the Fourth Proportional to 5,198,416.18, 7,171,617.64 and 3,480,090.28
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Solution
The fourth proportional to 5,198,416.18, 7,171,617.64 and 3,480,090.28 is: 4,801,054.01
Step by Step Solution
- Step 1: Write the proportion equation
5,198,416.18 : 7,171,617.64 = 3,480,090.28 : x - Step 2: Convert to fraction form
5,198,416.18/7,171,617.64 = 3,480,090.28/x - Step 3: Cross multiply
5,198,416.18x = 7,171,617.64 × 3,480,090.28 - Step 4: Simplify right side
5,198,416.18x = 24,957,876,840,840.54 - Step 5: Solve for x
x = 24,957,876,840,840.54/5,198,416.18 - Step 6: Final answer
x = 4,801,054.01
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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.