Finding the Fourth Proportional to 7,446,605.42, 11,170,160.10 and 1,981,705.61
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Solution
The fourth proportional to 7,446,605.42, 11,170,160.10 and 1,981,705.61 is: 2,972,625.46
Step by Step Solution
- Step 1: Write the proportion equation
7,446,605.42 : 11,170,160.10 = 1,981,705.61 : x - Step 2: Convert to fraction form
7,446,605.42/11,170,160.10 = 1,981,705.61/x - Step 3: Cross multiply
7,446,605.42x = 11,170,160.10 × 1,981,705.61 - Step 4: Simplify right side
7,446,605.42x = 22,135,968,878,917.36 - Step 5: Solve for x
x = 22,135,968,878,917.36/7,446,605.42 - Step 6: Final answer
x = 2,972,625.46
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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.