Finding the Fourth Proportional to 168,029,907.80, 252,044,861.70 and 147,874,515.80
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Solution
The fourth proportional to 168,029,907.80, 252,044,861.70 and 147,874,515.80 is: 221,811,773.70
Step by Step Solution
- Step 1: Write the proportion equation
168,029,907.80 : 252,044,861.70 = 147,874,515.80 : x - Step 2: Convert to fraction form
168,029,907.80/252,044,861.70 = 147,874,515.80/x - Step 3: Cross multiply
168,029,907.80x = 252,044,861.70 × 147,874,515.80 - Step 4: Simplify right side
168,029,907.80x = 37,271,011,883,765,464 - Step 5: Solve for x
x = 37,271,011,883,765,464/168,029,907.80 - Step 6: Final answer
x = 221,811,773.70
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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.