Finding the Fourth Proportional to 7,387,664.70, 11,081,497.05 and 1,997,147.10
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Solution
The fourth proportional to 7,387,664.70, 11,081,497.05 and 1,997,147.10 is: 2,995,720.65
Step by Step Solution
- Step 1: Write the proportion equation
7,387,664.70 : 11,081,497.05 = 1,997,147.10 : x - Step 2: Convert to fraction form
7,387,664.70/11,081,497.05 = 1,997,147.10/x - Step 3: Cross multiply
7,387,664.70x = 11,081,497.05 × 1,997,147.10 - Step 4: Simplify right side
7,387,664.70x = 22,131,379,697,066.06 - Step 5: Solve for x
x = 22,131,379,697,066.06/7,387,664.70 - Step 6: Final answer
x = 2,995,720.65
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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.