Finding the Fourth Proportional to 99,691,883.10, 149,691,789.45 and 54,342,251.10
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Solution
The fourth proportional to 99,691,883.10, 149,691,789.45 and 54,342,251.10 is: 81,597,303.18
Step by Step Solution
- Step 1: Write the proportion equation
99,691,883.10 : 149,691,789.45 = 54,342,251.10 : x - Step 2: Convert to fraction form
99,691,883.10/149,691,789.45 = 54,342,251.10/x - Step 3: Cross multiply
99,691,883.10x = 149,691,789.45 × 54,342,251.10 - Step 4: Simplify right side
99,691,883.10x = 8,134,588,809,900,230 - Step 5: Solve for x
x = 8,134,588,809,900,230/99,691,883.10 - Step 6: Final answer
x = 81,597,303.18
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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.