Finding the Fourth Proportional to 328,427,469.40, 453,231,108.42 and 177,720,125.94
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Solution
The fourth proportional to 328,427,469.40, 453,231,108.42 and 177,720,125.94 is: 245,254,423.50
Step by Step Solution
- Step 1: Write the proportion equation
328,427,469.40 : 453,231,108.42 = 177,720,125.94 : x - Step 2: Convert to fraction form
328,427,469.40/453,231,108.42 = 177,720,125.94/x - Step 3: Cross multiply
328,427,469.40x = 453,231,108.42 × 177,720,125.94 - Step 4: Simplify right side
328,427,469.40x = 80,548,289,668,328,192 - Step 5: Solve for x
x = 80,548,289,668,328,192/328,427,469.40 - Step 6: Final answer
x = 245,254,423.50
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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.