Finding the Fourth Proportional to 2,120,817.87, 3,192,762.35 and 1,932,491.79
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Solution
The fourth proportional to 2,120,817.87, 3,192,762.35 and 1,932,491.79 is: 2,909,248.89
Step by Step Solution
- Step 1: Write the proportion equation
2,120,817.87 : 3,192,762.35 = 1,932,491.79 : x - Step 2: Convert to fraction form
2,120,817.87/3,192,762.35 = 1,932,491.79/x - Step 3: Cross multiply
2,120,817.87x = 3,192,762.35 × 1,932,491.79 - Step 4: Simplify right side
2,120,817.87x = 6,169,987,028,796.11 - Step 5: Solve for x
x = 6,169,987,028,796.11/2,120,817.87 - Step 6: Final answer
x = 2,909,248.89
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.