Finding the Fourth Proportional to 121,451,467.40, 182,177,201.10 and 109,736,145.80
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Solution
The fourth proportional to 121,451,467.40, 182,177,201.10 and 109,736,145.80 is: 164,604,218.70
Step by Step Solution
- Step 1: Write the proportion equation
121,451,467.40 : 182,177,201.10 = 109,736,145.80 : x - Step 2: Convert to fraction form
121,451,467.40/182,177,201.10 = 109,736,145.80/x - Step 3: Cross multiply
121,451,467.40x = 182,177,201.10 × 109,736,145.80 - Step 4: Simplify right side
121,451,467.40x = 19,991,423,901,345,520 - Step 5: Solve for x
x = 19,991,423,901,345,520/121,451,467.40 - Step 6: Final answer
x = 164,604,218.70
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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.