Finding the Fourth Proportional to 48,512,311.60, 72,768,467.40 and 47,555,717.80
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Solution
The fourth proportional to 48,512,311.60, 72,768,467.40 and 47,555,717.80 is: 71,333,576.70
Step by Step Solution
- Step 1: Write the proportion equation
48,512,311.60 : 72,768,467.40 = 47,555,717.80 : x - Step 2: Convert to fraction form
48,512,311.60/72,768,467.40 = 47,555,717.80/x - Step 3: Cross multiply
48,512,311.60x = 72,768,467.40 × 47,555,717.80 - Step 4: Simplify right side
48,512,311.60x = 3,460,556,700,412,900 - Step 5: Solve for x
x = 3,460,556,700,412,900/48,512,311.60 - Step 6: Final answer
x = 71,333,576.70
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1.5x scale
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.