Finding the Fourth Proportional to 289,675,306.80, 434,589,942.60 and 125,842,762.80
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Solution
The fourth proportional to 289,675,306.80, 434,589,942.60 and 125,842,762.80 is: 188,797,587.43
Step by Step Solution
- Step 1: Write the proportion equation
289,675,306.80 : 434,589,942.60 = 125,842,762.80 : x - Step 2: Convert to fraction form
289,675,306.80/434,589,942.60 = 125,842,762.80/x - Step 3: Cross multiply
289,675,306.80x = 434,589,942.60 × 125,842,762.80 - Step 4: Simplify right side
289,675,306.80x = 54,689,999,061,877,416 - Step 5: Solve for x
x = 54,689,999,061,877,416/289,675,306.80 - Step 6: Final answer
x = 188,797,587.43
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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.