Finding the Fourth Proportional to 2,821,693,468.44, 3,890,322,249.78 and 2,311,175,463.15
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Solution
The fourth proportional to 2,821,693,468.44, 3,890,322,249.78 and 2,311,175,463.15 is: 3,186,461,402.70
Step by Step Solution
- Step 1: Write the proportion equation
2,821,693,468.44 : 3,890,322,249.78 = 2,311,175,463.15 : x - Step 2: Convert to fraction form
2,821,693,468.44/3,890,322,249.78 = 2,311,175,463.15/x - Step 3: Cross multiply
2,821,693,468.44x = 3,890,322,249.78 × 2,311,175,463.15 - Step 4: Simplify right side
2,821,693,468.44x = 8,991,217,327,438,042,112 - Step 5: Solve for x
x = 8,991,217,327,438,042,112/2,821,693,468.44 - Step 6: Final answer
x = 3,186,461,402.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.