Finding the Fourth Proportional to 87,512,219.80, 131,268,329.70 and 87,512,219.80
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Solution
The fourth proportional to 87,512,219.80, 131,268,329.70 and 87,512,219.80 is: 131,268,329.70
Step by Step Solution
- Step 1: Write the proportion equation
87,512,219.80 : 131,268,329.70 = 87,512,219.80 : x - Step 2: Convert to fraction form
87,512,219.80/131,268,329.70 = 87,512,219.80/x - Step 3: Cross multiply
87,512,219.80x = 131,268,329.70 × 87,512,219.80 - Step 4: Simplify right side
87,512,219.80x = 11,487,582,921,485,268 - Step 5: Solve for x
x = 11,487,582,921,485,268/87,512,219.80 - Step 6: Final answer
x = 131,268,329.70
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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.