Finding the Fourth Proportional to 33,080,129.20, 49,634,939.40 and 15,119,988.40
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Solution
The fourth proportional to 33,080,129.20, 49,634,939.40 and 15,119,988.40 is: 22,686,722.40
Step by Step Solution
- Step 1: Write the proportion equation
33,080,129.20 : 49,634,939.40 = 15,119,988.40 : x - Step 2: Convert to fraction form
33,080,129.20/49,634,939.40 = 15,119,988.40/x - Step 3: Cross multiply
33,080,129.20x = 49,634,939.40 × 15,119,988.40 - Step 4: Simplify right side
33,080,129.20x = 750,479,707,962,703 - Step 5: Solve for x
x = 750,479,707,962,703/33,080,129.20 - Step 6: Final answer
x = 22,686,722.40
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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.