Finding the Fourth Proportional to 7,965,316, 10,992,965.60 and 4,909,451.68
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Solution
The fourth proportional to 7,965,316, 10,992,965.60 and 4,909,451.68 is: 6,775,554.60
Step by Step Solution
- Step 1: Write the proportion equation
7,965,316 : 10,992,965.60 = 4,909,451.68 : x - Step 2: Convert to fraction form
7,965,316/10,992,965.60 = 4,909,451.68/x - Step 3: Cross multiply
7,965,316x = 10,992,965.60 × 4,909,451.68 - Step 4: Simplify right side
7,965,316x = 53,969,433,433,102.20 - Step 5: Solve for x
x = 53,969,433,433,102.20/7,965,316 - Step 6: Final answer
x = 6,775,554.60
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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.