Finding the Fourth Proportional to 21,717,141.57, 32,568,478.74 and 8,759,945.79
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Solution
The fourth proportional to 21,717,141.57, 32,568,478.74 and 8,759,945.79 is: 13,137,000.89
Step by Step Solution
- Step 1: Write the proportion equation
21,717,141.57 : 32,568,478.74 = 8,759,945.79 : x - Step 2: Convert to fraction form
21,717,141.57/32,568,478.74 = 8,759,945.79/x - Step 3: Cross multiply
21,717,141.57x = 32,568,478.74 × 8,759,945.79 - Step 4: Simplify right side
21,717,141.57x = 285,298,108,225,167.44 - Step 5: Solve for x
x = 285,298,108,225,167.44/21,717,141.57 - Step 6: Final answer
x = 13,137,000.89
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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.