Finding the Fourth Proportional to 99,621,896.70, 149,432,845.05 and 82,615,784.70
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Solution
The fourth proportional to 99,621,896.70, 149,432,845.05 and 82,615,784.70 is: 123,923,677.05
Step by Step Solution
- Step 1: Write the proportion equation
99,621,896.70 : 149,432,845.05 = 82,615,784.70 : x - Step 2: Convert to fraction form
99,621,896.70/149,432,845.05 = 82,615,784.70/x - Step 3: Cross multiply
99,621,896.70x = 149,432,845.05 × 82,615,784.70 - Step 4: Simplify right side
99,621,896.70x = 12,345,511,753,759,262 - Step 5: Solve for x
x = 12,345,511,753,759,262/99,621,896.70 - Step 6: Final answer
x = 123,923,677.05
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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.