Finding the Fourth Proportional to 859,469,925.42, 1,289,203,278.62 and 269,305,344.54
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Solution
The fourth proportional to 859,469,925.42, 1,289,203,278.62 and 269,305,344.54 is: 403,957,512.49
Step by Step Solution
- Step 1: Write the proportion equation
859,469,925.42 : 1,289,203,278.62 = 269,305,344.54 : x - Step 2: Convert to fraction form
859,469,925.42/1,289,203,278.62 = 269,305,344.54/x - Step 3: Cross multiply
859,469,925.42x = 1,289,203,278.62 × 269,305,344.54 - Step 4: Simplify right side
859,469,925.42x = 347,189,333,130,856,704 - Step 5: Solve for x
x = 347,189,333,130,856,704/859,469,925.42 - Step 6: Final answer
x = 403,957,512.49
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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.