Finding the Fourth Proportional to 197,589,245.40, 272,672,890.38 and 109,488,949.02
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Solution
The fourth proportional to 197,589,245.40, 272,672,890.38 and 109,488,949.02 is: 151,094,600.99
Step by Step Solution
- Step 1: Write the proportion equation
197,589,245.40 : 272,672,890.38 = 109,488,949.02 : x - Step 2: Convert to fraction form
197,589,245.40/272,672,890.38 = 109,488,949.02/x - Step 3: Cross multiply
197,589,245.40x = 272,672,890.38 × 109,488,949.02 - Step 4: Simplify right side
197,589,245.40x = 29,854,668,193,951,868 - Step 5: Solve for x
x = 29,854,668,193,951,868/197,589,245.40 - Step 6: Final answer
x = 151,094,600.99
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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.