Finding the Fourth Proportional to 88,128,207.80, 132,192,311.70 and 53,640,092.60
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Solution
The fourth proportional to 88,128,207.80, 132,192,311.70 and 53,640,092.60 is: 80,460,138.90
Step by Step Solution
- Step 1: Write the proportion equation
88,128,207.80 : 132,192,311.70 = 53,640,092.60 : x - Step 2: Convert to fraction form
88,128,207.80/132,192,311.70 = 53,640,092.60/x - Step 3: Cross multiply
88,128,207.80x = 132,192,311.70 × 53,640,092.60 - Step 4: Simplify right side
88,128,207.80x = 7,090,807,840,596,064 - Step 5: Solve for x
x = 7,090,807,840,596,064/88,128,207.80 - Step 6: Final answer
x = 80,460,138.90
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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.