Finding the Fourth Proportional to 99,647,597.80, 149,471,396.70 and 79,492,205.80
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Solution
The fourth proportional to 99,647,597.80, 149,471,396.70 and 79,492,205.80 is: 119,238,308.70
Step by Step Solution
- Step 1: Write the proportion equation
99,647,597.80 : 149,471,396.70 = 79,492,205.80 : x - Step 2: Convert to fraction form
99,647,597.80/149,471,396.70 = 79,492,205.80/x - Step 3: Cross multiply
99,647,597.80x = 149,471,396.70 × 79,492,205.80 - Step 4: Simplify right side
99,647,597.80x = 11,881,811,027,689,840 - Step 5: Solve for x
x = 11,881,811,027,689,840/99,647,597.80 - Step 6: Final answer
x = 119,238,308.70
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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.