Finding the Fourth Proportional to 7,442,405.80, 11,163,608.70 and 5,552,837.80
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Solution
The fourth proportional to 7,442,405.80, 11,163,608.70 and 5,552,837.80 is: 8,329,256.70
Step by Step Solution
- Step 1: Write the proportion equation
7,442,405.80 : 11,163,608.70 = 5,552,837.80 : x - Step 2: Convert to fraction form
7,442,405.80/11,163,608.70 = 5,552,837.80/x - Step 3: Cross multiply
7,442,405.80x = 11,163,608.70 × 5,552,837.80 - Step 4: Simplify right side
7,442,405.80x = 61,989,708,373,768.85 - Step 5: Solve for x
x = 61,989,708,373,768.85/7,442,405.80 - Step 6: Final answer
x = 8,329,256.70
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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.