Finding the Fourth Proportional to 4,890,565.76, 6,749,198.64 and 2,715,138.63
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Solution
The fourth proportional to 4,890,565.76, 6,749,198.64 and 2,715,138.63 is: 3,747,012.28
Step by Step Solution
- Step 1: Write the proportion equation
4,890,565.76 : 6,749,198.64 = 2,715,138.63 : x - Step 2: Convert to fraction form
4,890,565.76/6,749,198.64 = 2,715,138.63/x - Step 3: Cross multiply
4,890,565.76x = 6,749,198.64 × 2,715,138.63 - Step 4: Simplify right side
4,890,565.76x = 18,325,009,949,007.46 - Step 5: Solve for x
x = 18,325,009,949,007.46/4,890,565.76 - Step 6: Final answer
x = 3,747,012.28
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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.