Finding the Fourth Proportional to 7,877,562.18, 11,816,341.92 and 2,489,995.42
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Solution
The fourth proportional to 7,877,562.18, 11,816,341.92 and 2,489,995.42 is: 3,734,992.70
Step by Step Solution
- Step 1: Write the proportion equation
7,877,562.18 : 11,816,341.92 = 2,489,995.42 : x - Step 2: Convert to fraction form
7,877,562.18/11,816,341.92 = 2,489,995.42/x - Step 3: Cross multiply
7,877,562.18x = 11,816,341.92 × 2,489,995.42 - Step 4: Simplify right side
7,877,562.18x = 29,422,637,261,954.00 - Step 5: Solve for x
x = 29,422,637,261,954.00/7,877,562.18 - Step 6: Final answer
x = 3,734,992.70
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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.