Finding the Fourth Proportional to 2,009,138.43, 2,771,506.73 and 1,272,744.09
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Solution
The fourth proportional to 2,009,138.43, 2,771,506.73 and 1,272,744.09 is: 1,755,687.30
Step by Step Solution
- Step 1: Write the proportion equation
2,009,138.43 : 2,771,506.73 = 1,272,744.09 : x - Step 2: Convert to fraction form
2,009,138.43/2,771,506.73 = 1,272,744.09/x - Step 3: Cross multiply
2,009,138.43x = 2,771,506.73 × 1,272,744.09 - Step 4: Simplify right side
2,009,138.43x = 3,527,418,814,184.59 - Step 5: Solve for x
x = 3,527,418,814,184.59/2,009,138.43 - Step 6: Final answer
x = 1,755,687.30
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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.