Finding the Fourth Proportional to 7,378,225.12, 11,066,506.44 and 1,987,270.12
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Solution
The fourth proportional to 7,378,225.12, 11,066,506.44 and 1,987,270.12 is: 2,980,681.29
Step by Step Solution
- Step 1: Write the proportion equation
7,378,225.12 : 11,066,506.44 = 1,987,270.12 : x - Step 2: Convert to fraction form
7,378,225.12/11,066,506.44 = 1,987,270.12/x - Step 3: Cross multiply
7,378,225.12x = 11,066,506.44 × 1,987,270.12 - Step 4: Simplify right side
7,378,225.12x = 21,992,137,580,999.57 - Step 5: Solve for x
x = 21,992,137,580,999.57/7,378,225.12 - Step 6: Final answer
x = 2,980,681.29
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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.