Finding the Fourth Proportional to 102,790,630.35, 141,882,833.39 and 66,121,201.35
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Solution
The fourth proportional to 102,790,630.35, 141,882,833.39 and 66,121,201.35 is: 91,267,690.08
Step by Step Solution
- Step 1: Write the proportion equation
102,790,630.35 : 141,882,833.39 = 66,121,201.35 : x - Step 2: Convert to fraction form
102,790,630.35/141,882,833.39 = 66,121,201.35/x - Step 3: Cross multiply
102,790,630.35x = 141,882,833.39 × 66,121,201.35 - Step 4: Simplify right side
102,790,630.35x = 9,381,463,394,358,086 - Step 5: Solve for x
x = 9,381,463,394,358,086/102,790,630.35 - Step 6: Final answer
x = 91,267,690.08
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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.