Finding the Fourth Proportional to 121,991,855.20, 182,986,616.40 and 29,875,998.40
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Solution
The fourth proportional to 121,991,855.20, 182,986,616.40 and 29,875,998.40 is: 44,813,711.95
Step by Step Solution
- Step 1: Write the proportion equation
121,991,855.20 : 182,986,616.40 = 29,875,998.40 : x - Step 2: Convert to fraction form
121,991,855.20/182,986,616.40 = 29,875,998.40/x - Step 3: Cross multiply
121,991,855.20x = 182,986,616.40 × 29,875,998.40 - Step 4: Simplify right side
121,991,855.20x = 5,466,907,858,787,814 - Step 5: Solve for x
x = 5,466,907,858,787,814/121,991,855.20 - Step 6: Final answer
x = 44,813,711.95
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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.