Finding the Fourth Proportional to 8,999,243.91, 12,418,948.58 and 5,079,825.05
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Solution
The fourth proportional to 8,999,243.91, 12,418,948.58 and 5,079,825.05 is: 7,010,154.03
Step by Step Solution
- Step 1: Write the proportion equation
8,999,243.91 : 12,418,948.58 = 5,079,825.05 : x - Step 2: Convert to fraction form
8,999,243.91/12,418,948.58 = 5,079,825.05/x - Step 3: Cross multiply
8,999,243.91x = 12,418,948.58 × 5,079,825.05 - Step 4: Simplify right side
8,999,243.91x = 63,086,086,003,852.05 - Step 5: Solve for x
x = 63,086,086,003,852.05/8,999,243.91 - Step 6: Final answer
x = 7,010,154.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.