Finding the Fourth Proportional to 2,861,567,998.20, 4,292,351,997.30 and 1,990,855,063.80
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Solution
The fourth proportional to 2,861,567,998.20, 4,292,351,997.30 and 1,990,855,063.80 is: 2,986,282,595.70
Step by Step Solution
- Step 1: Write the proportion equation
2,861,567,998.20 : 4,292,351,997.30 = 1,990,855,063.80 : x - Step 2: Convert to fraction form
2,861,567,998.20/4,292,351,997.30 = 1,990,855,063.80/x - Step 3: Cross multiply
2,861,567,998.20x = 4,292,351,997.30 × 1,990,855,063.80 - Step 4: Simplify right side
2,861,567,998.20x = 8,545,450,709,436,748,800 - Step 5: Solve for x
x = 8,545,450,709,436,748,800/2,861,567,998.20 - Step 6: Final answer
x = 2,986,282,595.70
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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.