Finding the Fourth Proportional to 203,986,628.70, 281,493,335.19 and 111,165,143.58
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Solution
The fourth proportional to 203,986,628.70, 281,493,335.19 and 111,165,143.58 is: 153,403,422.68
Step by Step Solution
- Step 1: Write the proportion equation
203,986,628.70 : 281,493,335.19 = 111,165,143.58 : x - Step 2: Convert to fraction form
203,986,628.70/281,493,335.19 = 111,165,143.58/x - Step 3: Cross multiply
203,986,628.70x = 281,493,335.19 × 111,165,143.58 - Step 4: Simplify right side
203,986,628.70x = 31,292,247,023,209,416 - Step 5: Solve for x
x = 31,292,247,023,209,416/203,986,628.70 - Step 6: Final answer
x = 153,403,422.68
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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.