Finding the Fourth Proportional to 311,879,095.92, 430,398,249.06 and 170,747,961.84
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Solution
The fourth proportional to 311,879,095.92, 430,398,249.06 and 170,747,961.84 is: 235,634,977.68
Step by Step Solution
- Step 1: Write the proportion equation
311,879,095.92 : 430,398,249.06 = 170,747,961.84 : x - Step 2: Convert to fraction form
311,879,095.92/430,398,249.06 = 170,747,961.84/x - Step 3: Cross multiply
311,879,095.92x = 430,398,249.06 × 170,747,961.84 - Step 4: Simplify right side
311,879,095.92x = 73,489,623,807,140,000 - Step 5: Solve for x
x = 73,489,623,807,140,000/311,879,095.92 - Step 6: Final answer
x = 235,634,977.68
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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.