Finding the Fourth Proportional to 67,008,716.93, 100,518,865.61 and 18,486,570.75
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Solution
The fourth proportional to 67,008,716.93, 100,518,865.61 and 18,486,570.75 is: 27,731,453.55
Step by Step Solution
- Step 1: Write the proportion equation
67,008,716.93 : 100,518,865.61 = 18,486,570.75 : x - Step 2: Convert to fraction form
67,008,716.93/100,518,865.61 = 18,486,570.75/x - Step 3: Cross multiply
67,008,716.93x = 100,518,865.61 × 18,486,570.75 - Step 4: Simplify right side
67,008,716.93x = 1,858,249,120,716,574.25 - Step 5: Solve for x
x = 1,858,249,120,716,574.25/67,008,716.93 - Step 6: Final answer
x = 27,731,453.55
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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.