Finding the Fourth Proportional to 207,966,828.88, 311,455,107.60 and 120,343,630.88
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Solution
The fourth proportional to 207,966,828.88, 311,455,107.60 and 120,343,630.88 is: 180,228,927.40
Step by Step Solution
- Step 1: Write the proportion equation
207,966,828.88 : 311,455,107.60 = 120,343,630.88 : x - Step 2: Convert to fraction form
207,966,828.88/311,455,107.60 = 120,343,630.88/x - Step 3: Cross multiply
207,966,828.88x = 311,455,107.60 × 120,343,630.88 - Step 4: Simplify right side
207,966,828.88x = 37,481,638,504,705,088 - Step 5: Solve for x
x = 37,481,638,504,705,088/207,966,828.88 - Step 6: Final answer
x = 180,228,927.40
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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.