Finding the Fourth Proportional to 73,988,081.10, 110,982,121.65 and 20,135,393.10
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Solution
The fourth proportional to 73,988,081.10, 110,982,121.65 and 20,135,393.10 is: 30,203,089.65
Step by Step Solution
- Step 1: Write the proportion equation
73,988,081.10 : 110,982,121.65 = 20,135,393.10 : x - Step 2: Convert to fraction form
73,988,081.10/110,982,121.65 = 20,135,393.10/x - Step 3: Cross multiply
73,988,081.10x = 110,982,121.65 × 20,135,393.10 - Step 4: Simplify right side
73,988,081.10x = 2,234,668,646,494,771 - Step 5: Solve for x
x = 2,234,668,646,494,771/73,988,081.10 - Step 6: Final answer
x = 30,203,089.65
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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.