Finding the Fourth Proportional to 7,873,815.09, 11,815,372.75 and 3,324,569.42
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Solution
The fourth proportional to 7,873,815.09, 11,815,372.75 and 3,324,569.42 is: 4,988,817.55
Step by Step Solution
- Step 1: Write the proportion equation
7,873,815.09 : 11,815,372.75 = 3,324,569.42 : x - Step 2: Convert to fraction form
7,873,815.09/11,815,372.75 = 3,324,569.42/x - Step 3: Cross multiply
7,873,815.09x = 11,815,372.75 × 3,324,569.42 - Step 4: Simplify right side
7,873,815.09x = 39,281,026,891,550.41 - Step 5: Solve for x
x = 39,281,026,891,550.41/7,873,815.09 - Step 6: Final answer
x = 4,988,817.55
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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.