Finding the Fourth Proportional to 6,147,317.68, 8,482,515.96 and 3,431,178.16
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Solution
The fourth proportional to 6,147,317.68, 8,482,515.96 and 3,431,178.16 is: 4,734,589.14
Step by Step Solution
- Step 1: Write the proportion equation
6,147,317.68 : 8,482,515.96 = 3,431,178.16 : x - Step 2: Convert to fraction form
6,147,317.68/8,482,515.96 = 3,431,178.16/x - Step 3: Cross multiply
6,147,317.68x = 8,482,515.96 × 3,431,178.16 - Step 4: Simplify right side
6,147,317.68x = 29,105,023,503,803.44 - Step 5: Solve for x
x = 29,105,023,503,803.44/6,147,317.68 - Step 6: Final answer
x = 4,734,589.14
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.