Finding the Fourth Proportional to 10,128,394.74, 13,977,185.42 and 5,544,716.11
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Solution
The fourth proportional to 10,128,394.74, 13,977,185.42 and 5,544,716.11 is: 7,651,708.61
Step by Step Solution
- Step 1: Write the proportion equation
10,128,394.74 : 13,977,185.42 = 5,544,716.11 : x - Step 2: Convert to fraction form
10,128,394.74/13,977,185.42 = 5,544,716.11/x - Step 3: Cross multiply
10,128,394.74x = 13,977,185.42 × 5,544,716.11 - Step 4: Simplify right side
10,128,394.74x = 77,499,525,205,674.08 - Step 5: Solve for x
x = 77,499,525,205,674.08/10,128,394.74 - Step 6: Final answer
x = 7,651,708.61
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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.