Finding the Fourth Proportional to 5,148,120.74, 7,104,407.48 and 2,856,275.96
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Solution
The fourth proportional to 5,148,120.74, 7,104,407.48 and 2,856,275.96 is: 3,941,661.30
Step by Step Solution
- Step 1: Write the proportion equation
5,148,120.74 : 7,104,407.48 = 2,856,275.96 : x - Step 2: Convert to fraction form
5,148,120.74/7,104,407.48 = 2,856,275.96/x - Step 3: Cross multiply
5,148,120.74x = 7,104,407.48 × 2,856,275.96 - Step 4: Simplify right side
5,148,120.74x = 20,292,148,245,364.76 - Step 5: Solve for x
x = 20,292,148,245,364.76/5,148,120.74 - Step 6: Final answer
x = 3,941,661.30
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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.