Finding the Fourth Proportional to 20,192,129.91, 30,288,810.99 and 7,895,602.13
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Solution
The fourth proportional to 20,192,129.91, 30,288,810.99 and 7,895,602.13 is: 11,843,644.11
Step by Step Solution
- Step 1: Write the proportion equation
20,192,129.91 : 30,288,810.99 = 7,895,602.13 : x - Step 2: Convert to fraction form
20,192,129.91/30,288,810.99 = 7,895,602.13/x - Step 3: Cross multiply
20,192,129.91x = 30,288,810.99 × 7,895,602.13 - Step 4: Simplify right side
20,192,129.91x = 239,148,400,567,811.41 - Step 5: Solve for x
x = 239,148,400,567,811.41/20,192,129.91 - Step 6: Final answer
x = 11,843,644.11
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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.