Finding the Fourth Proportional to 324,516,456.11, 447,987,132.87 and 217,410,203.09
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Solution
The fourth proportional to 324,516,456.11, 447,987,132.87 and 217,410,203.09 is: 300,129,536.44
Step by Step Solution
- Step 1: Write the proportion equation
324,516,456.11 : 447,987,132.87 = 217,410,203.09 : x - Step 2: Convert to fraction form
324,516,456.11/447,987,132.87 = 217,410,203.09/x - Step 3: Cross multiply
324,516,456.11x = 447,987,132.87 × 217,410,203.09 - Step 4: Simplify right side
324,516,456.11x = 97,396,973,538,973,520 - Step 5: Solve for x
x = 97,396,973,538,973,520/324,516,456.11 - Step 6: Final answer
x = 300,129,536.44
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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.