Finding the Fourth Proportional to 203,986,628.20, 281,493,334.50 and 111,165,143.08
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Solution
The fourth proportional to 203,986,628.20, 281,493,334.50 and 111,165,143.08 is: 153,403,421.99
Step by Step Solution
- Step 1: Write the proportion equation
203,986,628.20 : 281,493,334.50 = 111,165,143.08 : x - Step 2: Convert to fraction form
203,986,628.20/281,493,334.50 = 111,165,143.08/x - Step 3: Cross multiply
203,986,628.20x = 281,493,334.50 × 111,165,143.08 - Step 4: Simplify right side
203,986,628.20x = 31,292,246,805,758,800 - Step 5: Solve for x
x = 31,292,246,805,758,800/203,986,628.20 - Step 6: Final answer
x = 153,403,421.99
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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.