Finding the Fourth Proportional to 129,399,181.80, 194,098,772.70 and 117,455,245.80
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Solution
The fourth proportional to 129,399,181.80, 194,098,772.70 and 117,455,245.80 is: 176,182,868.70
Step by Step Solution
- Step 1: Write the proportion equation
129,399,181.80 : 194,098,772.70 = 117,455,245.80 : x - Step 2: Convert to fraction form
129,399,181.80/194,098,772.70 = 117,455,245.80/x - Step 3: Cross multiply
129,399,181.80x = 194,098,772.70 × 117,455,245.80 - Step 4: Simplify right side
129,399,181.80x = 22,797,919,056,956,828 - Step 5: Solve for x
x = 22,797,919,056,956,828/129,399,181.80 - Step 6: Final answer
x = 176,182,868.70
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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.