Finding the Fourth Proportional to 18,935,849.84, 26,129,457.24 and 11,201,183.60
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Solution
The fourth proportional to 18,935,849.84, 26,129,457.24 and 11,201,183.60 is: 15,456,441.11
Step by Step Solution
- Step 1: Write the proportion equation
18,935,849.84 : 26,129,457.24 = 11,201,183.60 : x - Step 2: Convert to fraction form
18,935,849.84/26,129,457.24 = 11,201,183.60/x - Step 3: Cross multiply
18,935,849.84x = 26,129,457.24 × 11,201,183.60 - Step 4: Simplify right side
18,935,849.84x = 292,680,847,913,589.25 - Step 5: Solve for x
x = 292,680,847,913,589.25/18,935,849.84 - Step 6: Final answer
x = 15,456,441.11
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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.