Finding the Fourth Proportional to 25,815,120.16, 38,722,991.28 and 7,864,379.68
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Solution
The fourth proportional to 25,815,120.16, 38,722,991.28 and 7,864,379.68 is: 11,796,664.28
Step by Step Solution
- Step 1: Write the proportion equation
25,815,120.16 : 38,722,991.28 = 7,864,379.68 : x - Step 2: Convert to fraction form
25,815,120.16/38,722,991.28 = 7,864,379.68/x - Step 3: Cross multiply
25,815,120.16x = 38,722,991.28 × 7,864,379.68 - Step 4: Simplify right side
25,815,120.16x = 304,532,305,771,249.19 - Step 5: Solve for x
x = 304,532,305,771,249.19/25,815,120.16 - Step 6: Final answer
x = 11,796,664.28
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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.