Finding the Fourth Proportional to 5,148,121.76, 7,104,408.90 and 2,856,276.98
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Solution
The fourth proportional to 5,148,121.76, 7,104,408.90 and 2,856,276.98 is: 3,941,662.72
Step by Step Solution
- Step 1: Write the proportion equation
5,148,121.76 : 7,104,408.90 = 2,856,276.98 : x - Step 2: Convert to fraction form
5,148,121.76/7,104,408.90 = 2,856,276.98/x - Step 3: Cross multiply
5,148,121.76x = 7,104,408.90 × 2,856,276.98 - Step 4: Simplify right side
5,148,121.76x = 20,292,159,594,052.13 - Step 5: Solve for x
x = 20,292,159,594,052.13/5,148,121.76 - Step 6: Final answer
x = 3,941,662.72
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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.