Finding the Fourth Proportional to 3,764,568,306.72, 5,194,740,318.48 and 2,178,343,855.20
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Solution
The fourth proportional to 3,764,568,306.72, 5,194,740,318.48 and 2,178,343,855.20 is: 3,005,903,925.80
Step by Step Solution
- Step 1: Write the proportion equation
3,764,568,306.72 : 5,194,740,318.48 = 2,178,343,855.20 : x - Step 2: Convert to fraction form
3,764,568,306.72/5,194,740,318.48 = 2,178,343,855.20/x - Step 3: Cross multiply
3,764,568,306.72x = 5,194,740,318.48 × 2,178,343,855.20 - Step 4: Simplify right side
3,764,568,306.72x = 11,315,930,652,120,596,480 - Step 5: Solve for x
x = 11,315,930,652,120,596,480/3,764,568,306.72 - Step 6: Final answer
x = 3,005,903,925.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.