Finding the Fourth Proportional to 8,729,790.76, 12,047,716.74 and 5,292,176.68
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Solution
The fourth proportional to 8,729,790.76, 12,047,716.74 and 5,292,176.68 is: 7,303,570.88
Step by Step Solution
- Step 1: Write the proportion equation
8,729,790.76 : 12,047,716.74 = 5,292,176.68 : x - Step 2: Convert to fraction form
8,729,790.76/12,047,716.74 = 5,292,176.68/x - Step 3: Cross multiply
8,729,790.76x = 12,047,716.74 × 5,292,176.68 - Step 4: Simplify right side
8,729,790.76x = 63,758,645,578,673.62 - Step 5: Solve for x
x = 63,758,645,578,673.62/8,729,790.76 - Step 6: Final answer
x = 7,303,570.88
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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.