Finding the Fourth Proportional to 150,420,232.72, 207,560,744.24 and 87,680,633.31
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Solution
The fourth proportional to 150,420,232.72, 207,560,744.24 and 87,680,633.31 is: 120,988,095.66
Step by Step Solution
- Step 1: Write the proportion equation
150,420,232.72 : 207,560,744.24 = 87,680,633.31 : x - Step 2: Convert to fraction form
150,420,232.72/207,560,744.24 = 87,680,633.31/x - Step 3: Cross multiply
150,420,232.72x = 207,560,744.24 × 87,680,633.31 - Step 4: Simplify right side
150,420,232.72x = 18,199,057,505,477,336 - Step 5: Solve for x
x = 18,199,057,505,477,336/150,420,232.72 - Step 6: Final answer
x = 120,988,095.66
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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.