Finding the Fourth Proportional to 119,115,121.77, 164,383,809.93 and 66,191,631.75
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Solution
The fourth proportional to 119,115,121.77, 164,383,809.93 and 66,191,631.75 is: 91,347,198.00
Step by Step Solution
- Step 1: Write the proportion equation
119,115,121.77 : 164,383,809.93 = 66,191,631.75 : x - Step 2: Convert to fraction form
119,115,121.77/164,383,809.93 = 66,191,631.75/x - Step 3: Cross multiply
119,115,121.77x = 164,383,809.93 × 66,191,631.75 - Step 4: Simplify right side
119,115,121.77x = 10,880,832,612,548,554 - Step 5: Solve for x
x = 10,880,832,612,548,554/119,115,121.77 - Step 6: Final answer
x = 91,347,198.00
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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.