Finding the Fourth Proportional to 291,226,163.70, 436,839,245.55 and 245,309,661.30
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Solution
The fourth proportional to 291,226,163.70, 436,839,245.55 and 245,309,661.30 is: 367,964,491.95
Step by Step Solution
- Step 1: Write the proportion equation
291,226,163.70 : 436,839,245.55 = 245,309,661.30 : x - Step 2: Convert to fraction form
291,226,163.70/436,839,245.55 = 245,309,661.30/x - Step 3: Cross multiply
291,226,163.70x = 436,839,245.55 × 245,309,661.30 - Step 4: Simplify right side
291,226,163.70x = 107,160,887,368,418,048 - Step 5: Solve for x
x = 107,160,887,368,418,048/291,226,163.70 - Step 6: Final answer
x = 367,964,491.95
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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.