Finding the Fourth Proportional to 3,935,963.08, 5,431,638.90 and 2,282,430.70
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Solution
The fourth proportional to 3,935,963.08, 5,431,638.90 and 2,282,430.70 is: 3,149,760.08
Step by Step Solution
- Step 1: Write the proportion equation
3,935,963.08 : 5,431,638.90 = 2,282,430.70 : x - Step 2: Convert to fraction form
3,935,963.08/5,431,638.90 = 2,282,430.70/x - Step 3: Cross multiply
3,935,963.08x = 5,431,638.90 × 2,282,430.70 - Step 4: Simplify right side
3,935,963.08x = 12,397,339,376,674.23 - Step 5: Solve for x
x = 12,397,339,376,674.23/3,935,963.08 - Step 6: Final answer
x = 3,149,760.08
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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.