Finding the Fourth Proportional to 18,498,434.70, 27,747,652.05 and 5,720,231.10
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Solution
The fourth proportional to 18,498,434.70, 27,747,652.05 and 5,720,231.10 is: 8,580,346.65
Step by Step Solution
- Step 1: Write the proportion equation
18,498,434.70 : 27,747,652.05 = 5,720,231.10 : x - Step 2: Convert to fraction form
18,498,434.70/27,747,652.05 = 5,720,231.10/x - Step 3: Cross multiply
18,498,434.70x = 27,747,652.05 × 5,720,231.10 - Step 4: Simplify right side
18,498,434.70x = 158,722,982,208,388.75 - Step 5: Solve for x
x = 158,722,982,208,388.75/18,498,434.70 - Step 6: Final answer
x = 8,580,346.65
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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.