Finding the Fourth Proportional to 17,420,229.16, 26,128,654.32 and 5,289,797.68
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Solution
The fourth proportional to 17,420,229.16, 26,128,654.32 and 5,289,797.68 is: 7,934,183.51
Step by Step Solution
- Step 1: Write the proportion equation
17,420,229.16 : 26,128,654.32 = 5,289,797.68 : x - Step 2: Convert to fraction form
17,420,229.16/26,128,654.32 = 5,289,797.68/x - Step 3: Cross multiply
17,420,229.16x = 26,128,654.32 × 5,289,797.68 - Step 4: Simplify right side
17,420,229.16x = 138,215,295,003,457.97 - Step 5: Solve for x
x = 138,215,295,003,457.97/17,420,229.16 - Step 6: Final answer
x = 7,934,183.51
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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.