Finding the Fourth Proportional to 220,053,497.10, 330,080,245.65 and 99,121,145.10
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Solution
The fourth proportional to 220,053,497.10, 330,080,245.65 and 99,121,145.10 is: 148,681,717.65
Step by Step Solution
- Step 1: Write the proportion equation
220,053,497.10 : 330,080,245.65 = 99,121,145.10 : x - Step 2: Convert to fraction form
220,053,497.10/330,080,245.65 = 99,121,145.10/x - Step 3: Cross multiply
220,053,497.10x = 330,080,245.65 × 99,121,145.10 - Step 4: Simplify right side
220,053,497.10x = 32,717,931,923,717,288 - Step 5: Solve for x
x = 32,717,931,923,717,288/220,053,497.10 - Step 6: Final answer
x = 148,681,717.65
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Double scale
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Similar ratio
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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.