Finding the Fourth Proportional to 87,798,709.67, 121,153,382.21 and 48,633,170.09
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Solution
The fourth proportional to 87,798,709.67, 121,153,382.21 and 48,633,170.09 is: 67,108,879.69
Step by Step Solution
- Step 1: Write the proportion equation
87,798,709.67 : 121,153,382.21 = 48,633,170.09 : x - Step 2: Convert to fraction form
87,798,709.67/121,153,382.21 = 48,633,170.09/x - Step 3: Cross multiply
87,798,709.67x = 121,153,382.21 × 48,633,170.09 - Step 4: Simplify right side
87,798,709.67x = 5,892,073,043,513,527 - Step 5: Solve for x
x = 5,892,073,043,513,527/87,798,709.67 - Step 6: Final answer
x = 67,108,879.69
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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.