Finding the Fourth Proportional to 18,498,480.30, 27,747,720.45 and 18,179,615.70
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Solution
The fourth proportional to 18,498,480.30, 27,747,720.45 and 18,179,615.70 is: 27,269,423.55
Step by Step Solution
- Step 1: Write the proportion equation
18,498,480.30 : 27,747,720.45 = 18,179,615.70 : x - Step 2: Convert to fraction form
18,498,480.30/27,747,720.45 = 18,179,615.70/x - Step 3: Cross multiply
18,498,480.30x = 27,747,720.45 × 18,179,615.70 - Step 4: Simplify right side
18,498,480.30x = 504,442,894,332,031 - Step 5: Solve for x
x = 504,442,894,332,031/18,498,480.30 - Step 6: Final answer
x = 27,269,423.55
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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.