Finding the Fourth Proportional to 257,821,231.94, 355,793,338.46 and 140,347,453.99
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Solution
The fourth proportional to 257,821,231.94, 355,793,338.46 and 140,347,453.99 is: 193,679,507.40
Step by Step Solution
- Step 1: Write the proportion equation
257,821,231.94 : 355,793,338.46 = 140,347,453.99 : x - Step 2: Convert to fraction form
257,821,231.94/355,793,338.46 = 140,347,453.99/x - Step 3: Cross multiply
257,821,231.94x = 355,793,338.46 × 140,347,453.99 - Step 4: Simplify right side
257,821,231.94x = 49,934,689,198,924,736 - Step 5: Solve for x
x = 49,934,689,198,924,736/257,821,231.94 - Step 6: Final answer
x = 193,679,507.40
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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.