Finding the Fourth Proportional to 100,742,524.80, 150,861,844.80 and 80,587,132.80
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Solution
The fourth proportional to 100,742,524.80, 150,861,844.80 and 80,587,132.80 is: 120,679,162.50
Step by Step Solution
- Step 1: Write the proportion equation
100,742,524.80 : 150,861,844.80 = 80,587,132.80 : x - Step 2: Convert to fraction form
100,742,524.80/150,861,844.80 = 80,587,132.80/x - Step 3: Cross multiply
100,742,524.80x = 150,861,844.80 × 80,587,132.80 - Step 4: Simplify right side
100,742,524.80x = 12,157,523,521,350,590 - Step 5: Solve for x
x = 12,157,523,521,350,590/100,742,524.80 - Step 6: Final answer
x = 120,679,162.50
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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.