Finding the Fourth Proportional to 12,170,812.95, 18,266,356.17 and 6,415,613.10
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Solution
The fourth proportional to 12,170,812.95, 18,266,356.17 and 6,415,613.10 is: 9,628,763.04
Step by Step Solution
- Step 1: Write the proportion equation
12,170,812.95 : 18,266,356.17 = 6,415,613.10 : x - Step 2: Convert to fraction form
12,170,812.95/18,266,356.17 = 6,415,613.10/x - Step 3: Cross multiply
12,170,812.95x = 18,266,356.17 × 6,415,613.10 - Step 4: Simplify right side
12,170,812.95x = 117,189,873,933,517.83 - Step 5: Solve for x
x = 117,189,873,933,517.83/12,170,812.95 - Step 6: Final answer
x = 9,628,763.04
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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.