Finding the Fourth Proportional to 291,226,546.20, 436,839,819.30 and 245,310,043.80
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Solution
The fourth proportional to 291,226,546.20, 436,839,819.30 and 245,310,043.80 is: 367,965,065.70
Step by Step Solution
- Step 1: Write the proportion equation
291,226,546.20 : 436,839,819.30 = 245,310,043.80 : x - Step 2: Convert to fraction form
291,226,546.20/436,839,819.30 = 245,310,043.80/x - Step 3: Cross multiply
291,226,546.20x = 436,839,819.30 × 245,310,043.80 - Step 4: Simplify right side
291,226,546.20x = 107,161,195,206,067,088 - Step 5: Solve for x
x = 107,161,195,206,067,088/291,226,546.20 - Step 6: Final answer
x = 367,965,065.70
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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.