Finding the Fourth Proportional to 445,932,555.97, 668,747,143.63 and 169,517,101.09
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Solution
The fourth proportional to 445,932,555.97, 668,747,143.63 and 169,517,101.09 is: 254,217,987.97
Step by Step Solution
- Step 1: Write the proportion equation
445,932,555.97 : 668,747,143.63 = 169,517,101.09 : x - Step 2: Convert to fraction form
445,932,555.97/668,747,143.63 = 169,517,101.09/x - Step 3: Cross multiply
445,932,555.97x = 668,747,143.63 × 169,517,101.09 - Step 4: Simplify right side
445,932,555.97x = 113,364,077,148,915,504 - Step 5: Solve for x
x = 113,364,077,148,915,504/445,932,555.97 - Step 6: Final answer
x = 254,217,987.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.