Finding the Fourth Proportional to 5,197,918.35, 7,170,247.51 and 3,022,221.03
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Solution
The fourth proportional to 5,197,918.35, 7,170,247.51 and 3,022,221.03 is: 4,168,990.61
Step by Step Solution
- Step 1: Write the proportion equation
5,197,918.35 : 7,170,247.51 = 3,022,221.03 : x - Step 2: Convert to fraction form
5,197,918.35/7,170,247.51 = 3,022,221.03/x - Step 3: Cross multiply
5,197,918.35x = 7,170,247.51 × 3,022,221.03 - Step 4: Simplify right side
5,197,918.35x = 21,670,072,815,027.13 - Step 5: Solve for x
x = 21,670,072,815,027.13/5,197,918.35 - Step 6: Final answer
x = 4,168,990.61
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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.