Finding the Fourth Proportional to 121,379,200.80, 182,068,801.20 and 84,390,907.20
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Solution
The fourth proportional to 121,379,200.80, 182,068,801.20 and 84,390,907.20 is: 126,586,360.80
Step by Step Solution
- Step 1: Write the proportion equation
121,379,200.80 : 182,068,801.20 = 84,390,907.20 : x - Step 2: Convert to fraction form
121,379,200.80/182,068,801.20 = 84,390,907.20/x - Step 3: Cross multiply
121,379,200.80x = 182,068,801.20 × 84,390,907.20 - Step 4: Simplify right side
121,379,200.80x = 15,364,951,306,084,448 - Step 5: Solve for x
x = 15,364,951,306,084,448/121,379,200.80 - Step 6: Final answer
x = 126,586,360.80
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1.5x scale
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.