Finding the Fourth Proportional to 385,606,120.80, 531,939,682.80 and 246,230,340.96
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Solution
The fourth proportional to 385,606,120.80, 531,939,682.80 and 246,230,340.96 is: 339,672,226.14
Step by Step Solution
- Step 1: Write the proportion equation
385,606,120.80 : 531,939,682.80 = 246,230,340.96 : x - Step 2: Convert to fraction form
385,606,120.80/531,939,682.80 = 246,230,340.96/x - Step 3: Cross multiply
385,606,120.80x = 531,939,682.80 × 246,230,340.96 - Step 4: Simplify right side
385,606,120.80x = 130,979,689,465,998,256 - Step 5: Solve for x
x = 130,979,689,465,998,256/385,606,120.80 - Step 6: Final answer
x = 339,672,226.14
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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.