Finding the Fourth Proportional to 81,576,597.80, 122,364,896.70 and 27,723,909.80
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Solution
The fourth proportional to 81,576,597.80, 122,364,896.70 and 27,723,909.80 is: 41,585,864.70
Step by Step Solution
- Step 1: Write the proportion equation
81,576,597.80 : 122,364,896.70 = 27,723,909.80 : x - Step 2: Convert to fraction form
81,576,597.80/122,364,896.70 = 27,723,909.80/x - Step 3: Cross multiply
81,576,597.80x = 122,364,896.70 × 27,723,909.80 - Step 4: Simplify right side
81,576,597.80x = 3,392,433,358,797,118 - Step 5: Solve for x
x = 3,392,433,358,797,118/81,576,597.80 - Step 6: Final answer
x = 41,585,864.70
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1.5x scale
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.