Finding the Fourth Proportional to 5,431,775.10, 8,153,883.45 and 3,189,176.70
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Solution
The fourth proportional to 5,431,775.10, 8,153,883.45 and 3,189,176.70 is: 4,787,417.49
Step by Step Solution
- Step 1: Write the proportion equation
5,431,775.10 : 8,153,883.45 = 3,189,176.70 : x - Step 2: Convert to fraction form
5,431,775.10/8,153,883.45 = 3,189,176.70/x - Step 3: Cross multiply
5,431,775.10x = 8,153,883.45 × 3,189,176.70 - Step 4: Simplify right side
5,431,775.10x = 26,004,175,113,255.62 - Step 5: Solve for x
x = 26,004,175,113,255.62/5,431,775.10 - Step 6: Final answer
x = 4,787,417.49
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1.5x scale
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.