Finding the Fourth Proportional to 128,203,268.10, 192,304,902.15 and 37,329,821.70
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Solution
The fourth proportional to 128,203,268.10, 192,304,902.15 and 37,329,821.70 is: 55,994,732.55
Step by Step Solution
- Step 1: Write the proportion equation
128,203,268.10 : 192,304,902.15 = 37,329,821.70 : x - Step 2: Convert to fraction form
128,203,268.10/192,304,902.15 = 37,329,821.70/x - Step 3: Cross multiply
128,203,268.10x = 192,304,902.15 × 37,329,821.70 - Step 4: Simplify right side
128,203,268.10x = 7,178,707,709,295,447 - Step 5: Solve for x
x = 7,178,707,709,295,447/128,203,268.10 - Step 6: Final answer
x = 55,994,732.55
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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.