Finding the Fourth Proportional to 36,509,731.92, 50,381,515.62 and 19,986,690.96
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Solution
The fourth proportional to 36,509,731.92, 50,381,515.62 and 19,986,690.96 is: 27,580,585.50
Step by Step Solution
- Step 1: Write the proportion equation
36,509,731.92 : 50,381,515.62 = 19,986,690.96 : x - Step 2: Convert to fraction form
36,509,731.92/50,381,515.62 = 19,986,690.96/x - Step 3: Cross multiply
36,509,731.92x = 50,381,515.62 × 19,986,690.96 - Step 4: Simplify right side
36,509,731.92x = 1,006,959,782,793,352.75 - Step 5: Solve for x
x = 1,006,959,782,793,352.75/36,509,731.92 - Step 6: Final answer
x = 27,580,585.50
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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.