Finding the Fourth Proportional to 5,416,658.70, 8,128,137.60 and 2,224,076.10
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Solution
The fourth proportional to 5,416,658.70, 8,128,137.60 and 2,224,076.10 is: 3,337,407.35
Step by Step Solution
- Step 1: Write the proportion equation
5,416,658.70 : 8,128,137.60 = 2,224,076.10 : x - Step 2: Convert to fraction form
5,416,658.70/8,128,137.60 = 2,224,076.10/x - Step 3: Cross multiply
5,416,658.70x = 8,128,137.60 × 2,224,076.10 - Step 4: Simplify right side
5,416,658.70x = 18,077,596,573,671.36 - Step 5: Solve for x
x = 18,077,596,573,671.36/5,416,658.70 - Step 6: Final answer
x = 3,337,407.35
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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.