Finding the Fourth Proportional to 505,169,201.57, 757,780,965.80 and 160,149,732.75
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Solution
The fourth proportional to 505,169,201.57, 757,780,965.80 and 160,149,732.75 is: 240,233,210.53
Step by Step Solution
- Step 1: Write the proportion equation
505,169,201.57 : 757,780,965.80 = 160,149,732.75 : x - Step 2: Convert to fraction form
505,169,201.57/757,780,965.80 = 160,149,732.75/x - Step 3: Cross multiply
505,169,201.57x = 757,780,965.80 × 160,149,732.75 - Step 4: Simplify right side
505,169,201.57x = 121,358,419,155,106,128 - Step 5: Solve for x
x = 121,358,419,155,106,128/505,169,201.57 - Step 6: Final answer
x = 240,233,210.53
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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.