Finding the Fourth Proportional to 118,207,675.20, 177,311,512.80 and 72,858,043.20
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Solution
The fourth proportional to 118,207,675.20, 177,311,512.80 and 72,858,043.20 is: 109,287,064.80
Step by Step Solution
- Step 1: Write the proportion equation
118,207,675.20 : 177,311,512.80 = 72,858,043.20 : x - Step 2: Convert to fraction form
118,207,675.20/177,311,512.80 = 72,858,043.20/x - Step 3: Cross multiply
118,207,675.20x = 177,311,512.80 × 72,858,043.20 - Step 4: Simplify right side
118,207,675.20x = 12,918,569,859,439,754 - Step 5: Solve for x
x = 12,918,569,859,439,754/118,207,675.20 - Step 6: Final answer
x = 109,287,064.80
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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.