Finding the Fourth Proportional to 81,082,617.16, 121,639,573.76 and 26,480,523.58
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Solution
The fourth proportional to 81,082,617.16, 121,639,573.76 and 26,480,523.58 is: 39,725,895.81
Step by Step Solution
- Step 1: Write the proportion equation
81,082,617.16 : 121,639,573.76 = 26,480,523.58 : x - Step 2: Convert to fraction form
81,082,617.16/121,639,573.76 = 26,480,523.58/x - Step 3: Cross multiply
81,082,617.16x = 121,639,573.76 × 26,480,523.58 - Step 4: Simplify right side
81,082,617.16x = 3,221,079,601,212,829 - Step 5: Solve for x
x = 3,221,079,601,212,829/81,082,617.16 - Step 6: Final answer
x = 39,725,895.81
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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.