Finding the Fourth Proportional to 206,086,469.80, 309,129,704.70 and 125,464,901.80
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Solution
The fourth proportional to 206,086,469.80, 309,129,704.70 and 125,464,901.80 is: 188,197,352.70
Step by Step Solution
- Step 1: Write the proportion equation
206,086,469.80 : 309,129,704.70 = 125,464,901.80 : x - Step 2: Convert to fraction form
206,086,469.80/309,129,704.70 = 125,464,901.80/x - Step 3: Cross multiply
206,086,469.80x = 309,129,704.70 × 125,464,901.80 - Step 4: Simplify right side
206,086,469.80x = 38,784,928,043,648,496 - Step 5: Solve for x
x = 38,784,928,043,648,496/206,086,469.80 - Step 6: Final answer
x = 188,197,352.70
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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.