Finding the Fourth Proportional to 139,554,035.91, 192,581,049.57 and 76,829,507.84
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Solution
The fourth proportional to 139,554,035.91, 192,581,049.57 and 76,829,507.84 is: 106,022,782.93
Step by Step Solution
- Step 1: Write the proportion equation
139,554,035.91 : 192,581,049.57 = 76,829,507.84 : x - Step 2: Convert to fraction form
139,554,035.91/192,581,049.57 = 76,829,507.84/x - Step 3: Cross multiply
139,554,035.91x = 192,581,049.57 × 76,829,507.84 - Step 4: Simplify right side
139,554,035.91x = 14,795,907,256,810,836 - Step 5: Solve for x
x = 14,795,907,256,810,836/139,554,035.91 - Step 6: Final answer
x = 106,022,782.93
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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.