Finding the Fourth Proportional to 19,192,911.68, 28,794,090.72 and 13,524,207.68
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Solution
The fourth proportional to 19,192,911.68, 28,794,090.72 and 13,524,207.68 is: 20,289,639.70
Step by Step Solution
- Step 1: Write the proportion equation
19,192,911.68 : 28,794,090.72 = 13,524,207.68 : x - Step 2: Convert to fraction form
19,192,911.68/28,794,090.72 = 13,524,207.68/x - Step 3: Cross multiply
19,192,911.68x = 28,794,090.72 × 13,524,207.68 - Step 4: Simplify right side
19,192,911.68x = 389,417,262,854,040.69 - Step 5: Solve for x
x = 389,417,262,854,040.69/19,192,911.68 - Step 6: Final answer
x = 20,289,639.70
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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.