Finding the Fourth Proportional to 168,029,963.80, 252,044,945.70 and 147,874,571.80
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Solution
The fourth proportional to 168,029,963.80, 252,044,945.70 and 147,874,571.80 is: 221,811,857.70
Step by Step Solution
- Step 1: Write the proportion equation
168,029,963.80 : 252,044,945.70 = 147,874,571.80 : x - Step 2: Convert to fraction form
168,029,963.80/252,044,945.70 = 147,874,571.80/x - Step 3: Cross multiply
168,029,963.80x = 252,044,945.70 × 147,874,571.80 - Step 4: Simplify right side
168,029,963.80x = 37,271,038,419,741,752 - Step 5: Solve for x
x = 37,271,038,419,741,752/168,029,963.80 - Step 6: Final answer
x = 221,811,857.70
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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.