Finding the Fourth Proportional to 254,985,455.70, 382,478,183.55 and 82,479,707.10
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Solution
The fourth proportional to 254,985,455.70, 382,478,183.55 and 82,479,707.10 is: 123,719,560.65
Step by Step Solution
- Step 1: Write the proportion equation
254,985,455.70 : 382,478,183.55 = 82,479,707.10 : x - Step 2: Convert to fraction form
254,985,455.70/382,478,183.55 = 82,479,707.10/x - Step 3: Cross multiply
254,985,455.70x = 382,478,183.55 × 82,479,707.10 - Step 4: Simplify right side
254,985,455.70x = 31,546,688,551,344,036 - Step 5: Solve for x
x = 31,546,688,551,344,036/254,985,455.70 - Step 6: Final answer
x = 123,719,560.65
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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.