Finding the Fourth Proportional to 21,873,992.20, 32,807,877.90 and 7,497,723.40
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Solution
The fourth proportional to 21,873,992.20, 32,807,877.90 and 7,497,723.40 is: 11,245,518.95
Step by Step Solution
- Step 1: Write the proportion equation
21,873,992.20 : 32,807,877.90 = 7,497,723.40 : x - Step 2: Convert to fraction form
21,873,992.20/32,807,877.90 = 7,497,723.40/x - Step 3: Cross multiply
21,873,992.20x = 32,807,877.90 × 7,497,723.40 - Step 4: Simplify right side
21,873,992.20x = 245,984,393,835,172.88 - Step 5: Solve for x
x = 245,984,393,835,172.88/21,873,992.20 - Step 6: Final answer
x = 11,245,518.95
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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.