Finding the Fourth Proportional to 144,587,311.80, 216,880,967.70 and 124,431,919.80
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Solution
The fourth proportional to 144,587,311.80, 216,880,967.70 and 124,431,919.80 is: 186,647,879.70
Step by Step Solution
- Step 1: Write the proportion equation
144,587,311.80 : 216,880,967.70 = 124,431,919.80 : x - Step 2: Convert to fraction form
144,587,311.80/216,880,967.70 = 124,431,919.80/x - Step 3: Cross multiply
144,587,311.80x = 216,880,967.70 × 124,431,919.80 - Step 4: Simplify right side
144,587,311.80x = 26,986,915,178,992,788 - Step 5: Solve for x
x = 26,986,915,178,992,788/144,587,311.80 - Step 6: Final answer
x = 186,647,879.70
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1.5x scale
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.