Finding the Fourth Proportional to 21,495,683.87, 29,662,700.05 and 11,837,891.87
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Solution
The fourth proportional to 21,495,683.87, 29,662,700.05 and 11,837,891.87 is: 16,335,550.80
Step by Step Solution
- Step 1: Write the proportion equation
21,495,683.87 : 29,662,700.05 = 11,837,891.87 : x - Step 2: Convert to fraction form
21,495,683.87/29,662,700.05 = 11,837,891.87/x - Step 3: Cross multiply
21,495,683.87x = 29,662,700.05 × 11,837,891.87 - Step 4: Simplify right side
21,495,683.87x = 351,143,835,764,143.56 - Step 5: Solve for x
x = 351,143,835,764,143.56/21,495,683.87 - Step 6: Final answer
x = 16,335,550.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.