Finding the Fourth Proportional to 99,691,251.80, 149,284,935.30 and 79,535,859.80
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Solution
The fourth proportional to 99,691,251.80, 149,284,935.30 and 79,535,859.80 is: 119,102,784.55
Step by Step Solution
- Step 1: Write the proportion equation
99,691,251.80 : 149,284,935.30 = 79,535,859.80 : x - Step 2: Convert to fraction form
99,691,251.80/149,284,935.30 = 79,535,859.80/x - Step 3: Cross multiply
99,691,251.80x = 149,284,935.30 × 79,535,859.80 - Step 4: Simplify right side
99,691,251.80x = 11,873,505,684,272,872 - Step 5: Solve for x
x = 11,873,505,684,272,872/99,691,251.80 - Step 6: Final answer
x = 119,102,784.55
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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.