Finding the Fourth Proportional to 35,668,439.20, 53,519,247.60 and 18,648,330.40
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Solution
The fourth proportional to 35,668,439.20, 53,519,247.60 and 18,648,330.40 is: 27,981,168.63
Step by Step Solution
- Step 1: Write the proportion equation
35,668,439.20 : 53,519,247.60 = 18,648,330.40 : x - Step 2: Convert to fraction form
35,668,439.20/53,519,247.60 = 18,648,330.40/x - Step 3: Cross multiply
35,668,439.20x = 53,519,247.60 × 18,648,330.40 - Step 4: Simplify right side
35,668,439.20x = 998,044,612,004,207 - Step 5: Solve for x
x = 998,044,612,004,207/35,668,439.20 - Step 6: Final answer
x = 27,981,168.63
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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.