Finding the Fourth Proportional to 11,059,286.28, 15,258,635.06 and 7,197,491.72
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Solution
The fourth proportional to 11,059,286.28, 15,258,635.06 and 7,197,491.72 is: 9,930,468.99
Step by Step Solution
- Step 1: Write the proportion equation
11,059,286.28 : 15,258,635.06 = 7,197,491.72 : x - Step 2: Convert to fraction form
11,059,286.28/15,258,635.06 = 7,197,491.72/x - Step 3: Cross multiply
11,059,286.28x = 15,258,635.06 × 7,197,491.72 - Step 4: Simplify right side
11,059,286.28x = 109,823,899,502,851.70 - Step 5: Solve for x
x = 109,823,899,502,851.70/11,059,286.28 - Step 6: Final answer
x = 9,930,468.99
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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.