Finding the Fourth Proportional to 7,006,643.36, 9,669,163.56 and 3,787,379.36
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Solution
The fourth proportional to 7,006,643.36, 9,669,163.56 and 3,787,379.36 is: 5,226,581.21
Step by Step Solution
- Step 1: Write the proportion equation
7,006,643.36 : 9,669,163.56 = 3,787,379.36 : x - Step 2: Convert to fraction form
7,006,643.36/9,669,163.56 = 3,787,379.36/x - Step 3: Cross multiply
7,006,643.36x = 9,669,163.56 × 3,787,379.36 - Step 4: Simplify right side
7,006,643.36x = 36,620,790,495,608.12 - Step 5: Solve for x
x = 36,620,790,495,608.12/7,006,643.36 - Step 6: Final answer
x = 5,226,581.21
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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.