Finding the Fourth Proportional to 81,533,107.80, 122,299,661.70 and 27,680,419.80
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Solution
The fourth proportional to 81,533,107.80, 122,299,661.70 and 27,680,419.80 is: 41,520,629.70
Step by Step Solution
- Step 1: Write the proportion equation
81,533,107.80 : 122,299,661.70 = 27,680,419.80 : x - Step 2: Convert to fraction form
81,533,107.80/122,299,661.70 = 27,680,419.80/x - Step 3: Cross multiply
81,533,107.80x = 122,299,661.70 × 27,680,419.80 - Step 4: Simplify right side
81,533,107.80x = 3,385,305,977,253,982 - Step 5: Solve for x
x = 3,385,305,977,253,982/81,533,107.80 - Step 6: Final answer
x = 41,520,629.70
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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.