Finding the Fourth Proportional to 261,673,274.28, 361,111,506.84 and 144,202,819.44
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Solution
The fourth proportional to 261,673,274.28, 361,111,506.84 and 144,202,819.44 is: 199,001,206.99
Step by Step Solution
- Step 1: Write the proportion equation
261,673,274.28 : 361,111,506.84 = 144,202,819.44 : x - Step 2: Convert to fraction form
261,673,274.28/361,111,506.84 = 144,202,819.44/x - Step 3: Cross multiply
261,673,274.28x = 361,111,506.84 × 144,202,819.44 - Step 4: Simplify right side
261,673,274.28x = 52,073,297,418,554,840 - Step 5: Solve for x
x = 52,073,297,418,554,840/261,673,274.28 - Step 6: Final answer
x = 199,001,206.99
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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.