Finding the Fourth Proportional to 21,703,416.80, 32,560,309.20 and 6,557,496.80
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Solution
The fourth proportional to 21,703,416.80, 32,560,309.20 and 6,557,496.80 is: 9,837,811.50
Step by Step Solution
- Step 1: Write the proportion equation
21,703,416.80 : 32,560,309.20 = 6,557,496.80 : x - Step 2: Convert to fraction form
21,703,416.80/32,560,309.20 = 6,557,496.80/x - Step 3: Cross multiply
21,703,416.80x = 32,560,309.20 × 6,557,496.80 - Step 4: Simplify right side
21,703,416.80x = 213,514,123,386,010.56 - Step 5: Solve for x
x = 213,514,123,386,010.56/21,703,416.80 - Step 6: Final answer
x = 9,837,811.50
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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.