Finding the Fourth Proportional to 10,202,446.80, 14,079,205.32 and 5,619,194.64
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Solution
The fourth proportional to 10,202,446.80, 14,079,205.32 and 5,619,194.64 is: 7,754,394.28
Step by Step Solution
- Step 1: Write the proportion equation
10,202,446.80 : 14,079,205.32 = 5,619,194.64 : x - Step 2: Convert to fraction form
10,202,446.80/14,079,205.32 = 5,619,194.64/x - Step 3: Cross multiply
10,202,446.80x = 14,079,205.32 × 5,619,194.64 - Step 4: Simplify right side
10,202,446.80x = 79,113,795,069,603.48 - Step 5: Solve for x
x = 79,113,795,069,603.48/10,202,446.80 - Step 6: Final answer
x = 7,754,394.28
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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.