Finding the Fourth Proportional to 18,428,771.01, 25,440,911.07 and 11,461,694.31
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Solution
The fourth proportional to 18,428,771.01, 25,440,911.07 and 11,461,694.31 is: 15,822,864.45
Step by Step Solution
- Step 1: Write the proportion equation
18,428,771.01 : 25,440,911.07 = 11,461,694.31 : x - Step 2: Convert to fraction form
18,428,771.01/25,440,911.07 = 11,461,694.31/x - Step 3: Cross multiply
18,428,771.01x = 25,440,911.07 × 11,461,694.31 - Step 4: Simplify right side
18,428,771.01x = 291,595,945,652,235 - Step 5: Solve for x
x = 291,595,945,652,235/18,428,771.01 - Step 6: Final answer
x = 15,822,864.45
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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.