Finding the Fourth Proportional to 318,889,795.92, 440,067,923.88 and 172,212,079.92
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Solution
The fourth proportional to 318,889,795.92, 440,067,923.88 and 172,212,079.92 is: 237,652,673.27
Step by Step Solution
- Step 1: Write the proportion equation
318,889,795.92 : 440,067,923.88 = 172,212,079.92 : x - Step 2: Convert to fraction form
318,889,795.92/440,067,923.88 = 172,212,079.92/x - Step 3: Cross multiply
318,889,795.92x = 440,067,923.88 × 172,212,079.92 - Step 4: Simplify right side
318,889,795.92x = 75,785,012,477,451,024 - Step 5: Solve for x
x = 75,785,012,477,451,024/318,889,795.92 - Step 6: Final answer
x = 237,652,673.27
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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.