Finding the Fourth Proportional to 139,288,695.11, 192,216,244.30 and 76,563,450.82
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Solution
The fourth proportional to 139,288,695.11, 192,216,244.30 and 76,563,450.82 is: 105,656,377.61
Step by Step Solution
- Step 1: Write the proportion equation
139,288,695.11 : 192,216,244.30 = 76,563,450.82 : x - Step 2: Convert to fraction form
139,288,695.11/192,216,244.30 = 76,563,450.82/x - Step 3: Cross multiply
139,288,695.11x = 192,216,244.30 × 76,563,450.82 - Step 4: Simplify right side
139,288,695.11x = 14,716,738,967,268,154 - Step 5: Solve for x
x = 14,716,738,967,268,154/139,288,695.11 - Step 6: Final answer
x = 105,656,377.61
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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.