Finding the Fourth Proportional to 436,389,367.87, 654,568,108.37 and 129,673,509.13
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Solution
The fourth proportional to 436,389,367.87, 654,568,108.37 and 129,673,509.13 is: 194,505,526.09
Step by Step Solution
- Step 1: Write the proportion equation
436,389,367.87 : 654,568,108.37 = 129,673,509.13 : x - Step 2: Convert to fraction form
436,389,367.87/654,568,108.37 = 129,673,509.13/x - Step 3: Cross multiply
436,389,367.87x = 654,568,108.37 × 129,673,509.13 - Step 4: Simplify right side
436,389,367.87x = 84,880,143,577,580,128 - Step 5: Solve for x
x = 84,880,143,577,580,128/436,389,367.87 - Step 6: Final answer
x = 194,505,526.09
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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.