Finding the Fourth Proportional to 155,723,917.10, 214,825,836.42 and 111,079,756.62
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Solution
The fourth proportional to 155,723,917.10, 214,825,836.42 and 111,079,756.62 is: 153,237,871.68
Step by Step Solution
- Step 1: Write the proportion equation
155,723,917.10 : 214,825,836.42 = 111,079,756.62 : x - Step 2: Convert to fraction form
155,723,917.10/214,825,836.42 = 111,079,756.62/x - Step 3: Cross multiply
155,723,917.10x = 214,825,836.42 × 111,079,756.62 - Step 4: Simplify right side
155,723,917.10x = 23,862,801,625,221,532 - Step 5: Solve for x
x = 23,862,801,625,221,532/155,723,917.10 - Step 6: Final answer
x = 153,237,871.68
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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.