Finding the Fourth Proportional to 7,448,403.12, 11,172,533.29 and 4,413,584.42
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Solution
The fourth proportional to 7,448,403.12, 11,172,533.29 and 4,413,584.42 is: 6,620,334.33
Step by Step Solution
- Step 1: Write the proportion equation
7,448,403.12 : 11,172,533.29 = 4,413,584.42 : x - Step 2: Convert to fraction form
7,448,403.12/11,172,533.29 = 4,413,584.42/x - Step 3: Cross multiply
7,448,403.12x = 11,172,533.29 × 4,413,584.42 - Step 4: Simplify right side
7,448,403.12x = 49,310,918,860,675.34 - Step 5: Solve for x
x = 49,310,918,860,675.34/7,448,403.12 - Step 6: Final answer
x = 6,620,334.33
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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.