Finding the Fourth Proportional to 115,563,845.80, 173,345,768.70 and 38,861,381.80
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Solution
The fourth proportional to 115,563,845.80, 173,345,768.70 and 38,861,381.80 is: 58,292,072.70
Step by Step Solution
- Step 1: Write the proportion equation
115,563,845.80 : 173,345,768.70 = 38,861,381.80 : x - Step 2: Convert to fraction form
115,563,845.80/173,345,768.70 = 38,861,381.80/x - Step 3: Cross multiply
115,563,845.80x = 173,345,768.70 × 38,861,381.80 - Step 4: Simplify right side
115,563,845.80x = 6,736,456,100,865,189 - Step 5: Solve for x
x = 6,736,456,100,865,189/115,563,845.80 - Step 6: Final answer
x = 58,292,072.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.