Finding the Fourth Proportional to 13,751,147.24, 18,975,472.40 and 7,950,302.88
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Solution
The fourth proportional to 13,751,147.24, 18,975,472.40 and 7,950,302.88 is: 10,970,775.76
Step by Step Solution
- Step 1: Write the proportion equation
13,751,147.24 : 18,975,472.40 = 7,950,302.88 : x - Step 2: Convert to fraction form
13,751,147.24/18,975,472.40 = 7,950,302.88/x - Step 3: Cross multiply
13,751,147.24x = 18,975,472.40 × 7,950,302.88 - Step 4: Simplify right side
13,751,147.24x = 150,860,752,871,080.50 - Step 5: Solve for x
x = 150,860,752,871,080.50/13,751,147.24 - Step 6: Final answer
x = 10,970,775.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.