Finding the Fourth Proportional to 7,150,801.90, 10,726,202.85 and 6,366,981.10
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Solution
The fourth proportional to 7,150,801.90, 10,726,202.85 and 6,366,981.10 is: 9,550,471.65
Step by Step Solution
- Step 1: Write the proportion equation
7,150,801.90 : 10,726,202.85 = 6,366,981.10 : x - Step 2: Convert to fraction form
7,150,801.90/10,726,202.85 = 6,366,981.10/x - Step 3: Cross multiply
7,150,801.90x = 10,726,202.85 × 6,366,981.10 - Step 4: Simplify right side
7,150,801.90x = 68,293,530,820,716.12 - Step 5: Solve for x
x = 68,293,530,820,716.12/7,150,801.90 - Step 6: Final answer
x = 9,550,471.65
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Double scale
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Similar ratio
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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.