Finding the Fourth Proportional to 15,212,911.76, 22,821,498.98 and 4,978,575.99
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Solution
The fourth proportional to 15,212,911.76, 22,821,498.98 and 4,978,575.99 is: 7,468,561.49
Step by Step Solution
- Step 1: Write the proportion equation
15,212,911.76 : 22,821,498.98 = 4,978,575.99 : x - Step 2: Convert to fraction form
15,212,911.76/22,821,498.98 = 4,978,575.99/x - Step 3: Cross multiply
15,212,911.76x = 22,821,498.98 × 4,978,575.99 - Step 4: Simplify right side
15,212,911.76x = 113,618,566,852,744.62 - Step 5: Solve for x
x = 113,618,566,852,744.62/15,212,911.76 - Step 6: Final answer
x = 7,468,561.49
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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.