Finding the Fourth Proportional to 5,148,121.74, 7,104,408.86 and 2,856,276.96
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Solution
The fourth proportional to 5,148,121.74, 7,104,408.86 and 2,856,276.96 is: 3,941,662.68
Step by Step Solution
- Step 1: Write the proportion equation
5,148,121.74 : 7,104,408.86 = 2,856,276.96 : x - Step 2: Convert to fraction form
5,148,121.74/7,104,408.86 = 2,856,276.96/x - Step 3: Cross multiply
5,148,121.74x = 7,104,408.86 × 2,856,276.96 - Step 4: Simplify right side
5,148,121.74x = 20,292,159,341,237.87 - Step 5: Solve for x
x = 20,292,159,341,237.87/5,148,121.74 - Step 6: Final answer
x = 3,941,662.68
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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.