Finding the Fourth Proportional to 276,660,954, 381,968,198.36 and 172,392,207.12
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Solution
The fourth proportional to 276,660,954, 381,968,198.36 and 172,392,207.12 is: 238,010,965.45
Step by Step Solution
- Step 1: Write the proportion equation
276,660,954 : 381,968,198.36 = 172,392,207.12 : x - Step 2: Convert to fraction form
276,660,954/381,968,198.36 = 172,392,207.12/x - Step 3: Cross multiply
276,660,954x = 381,968,198.36 × 172,392,207.12 - Step 4: Simplify right side
276,660,954x = 65,848,340,764,930,368 - Step 5: Solve for x
x = 65,848,340,764,930,368/276,660,954 - Step 6: Final answer
x = 238,010,965.45
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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.