Finding the Fourth Proportional to 11,284,955.46, 15,578,005.50 and 7,618,837.68
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Solution
The fourth proportional to 11,284,955.46, 15,578,005.50 and 7,618,837.68 is: 10,517,214.33
Step by Step Solution
- Step 1: Write the proportion equation
11,284,955.46 : 15,578,005.50 = 7,618,837.68 : x - Step 2: Convert to fraction form
11,284,955.46/15,578,005.50 = 7,618,837.68/x - Step 3: Cross multiply
11,284,955.46x = 15,578,005.50 × 7,618,837.68 - Step 4: Simplify right side
11,284,955.46x = 118,686,295,282,647.23 - Step 5: Solve for x
x = 118,686,295,282,647.23/11,284,955.46 - Step 6: Final answer
x = 10,517,214.33
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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.