Finding the Fourth Proportional to 18,486,069.59, 27,731,627.67 and 7,700,847.68
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Solution
The fourth proportional to 18,486,069.59, 27,731,627.67 and 7,700,847.68 is: 11,552,322.66
Step by Step Solution
- Step 1: Write the proportion equation
18,486,069.59 : 27,731,627.67 = 7,700,847.68 : x - Step 2: Convert to fraction form
18,486,069.59/27,731,627.67 = 7,700,847.68/x - Step 3: Cross multiply
18,486,069.59x = 27,731,627.67 × 7,700,847.68 - Step 4: Simplify right side
18,486,069.59x = 213,557,040,605,143.31 - Step 5: Solve for x
x = 213,557,040,605,143.31/18,486,069.59 - Step 6: Final answer
x = 11,552,322.66
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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.