Finding the Fourth Proportional to 91,151,996.18, 125,789,744.85 and 49,336,053.84
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Solution
The fourth proportional to 91,151,996.18, 125,789,744.85 and 49,336,053.84 is: 68,083,748.96
Step by Step Solution
- Step 1: Write the proportion equation
91,151,996.18 : 125,789,744.85 = 49,336,053.84 : x - Step 2: Convert to fraction form
91,151,996.18/125,789,744.85 = 49,336,053.84/x - Step 3: Cross multiply
91,151,996.18x = 125,789,744.85 × 49,336,053.84 - Step 4: Simplify right side
91,151,996.18x = 6,205,969,624,439,463 - Step 5: Solve for x
x = 6,205,969,624,439,463/91,151,996.18 - Step 6: Final answer
x = 68,083,748.96
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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.