Finding the Fourth Proportional to 206,086,481.80, 309,129,722.70 and 125,464,913.80
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Solution
The fourth proportional to 206,086,481.80, 309,129,722.70 and 125,464,913.80 is: 188,197,370.70
Step by Step Solution
- Step 1: Write the proportion equation
206,086,481.80 : 309,129,722.70 = 125,464,913.80 : x - Step 2: Convert to fraction form
206,086,481.80/309,129,722.70 = 125,464,913.80/x - Step 3: Cross multiply
206,086,481.80x = 309,129,722.70 × 125,464,913.80 - Step 4: Simplify right side
206,086,481.80x = 38,784,934,011,573,400 - Step 5: Solve for x
x = 38,784,934,011,573,400/206,086,481.80 - Step 6: Final answer
x = 188,197,370.70
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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.