Finding the Fourth Proportional to 3,520,370.07, 4,857,942.69 and 2,161,980.63
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Solution
The fourth proportional to 3,520,370.07, 4,857,942.69 and 2,161,980.63 is: 2,983,430.09
Step by Step Solution
- Step 1: Write the proportion equation
3,520,370.07 : 4,857,942.69 = 2,161,980.63 : x - Step 2: Convert to fraction form
3,520,370.07/4,857,942.69 = 2,161,980.63/x - Step 3: Cross multiply
3,520,370.07x = 4,857,942.69 × 2,161,980.63 - Step 4: Simplify right side
3,520,370.07x = 10,502,777,997,430.10 - Step 5: Solve for x
x = 10,502,777,997,430.10/3,520,370.07 - Step 6: Final answer
x = 2,983,430.09
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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.