Finding the Fourth Proportional to 2,861,567,998.70, 4,292,351,998.05 and 1,990,855,064.30
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Solution
The fourth proportional to 2,861,567,998.70, 4,292,351,998.05 and 1,990,855,064.30 is: 2,986,282,596.45
Step by Step Solution
- Step 1: Write the proportion equation
2,861,567,998.70 : 4,292,351,998.05 = 1,990,855,064.30 : x - Step 2: Convert to fraction form
2,861,567,998.70/4,292,351,998.05 = 1,990,855,064.30/x - Step 3: Cross multiply
2,861,567,998.70x = 4,292,351,998.05 × 1,990,855,064.30 - Step 4: Simplify right side
2,861,567,998.70x = 8,545,450,713,076,066,304 - Step 5: Solve for x
x = 8,545,450,713,076,066,304/2,861,567,998.70 - Step 6: Final answer
x = 2,986,282,596.45
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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.