Finding the Fourth Proportional to 19,708,738.47, 29,556,259.97 and 10,968,354.09
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Solution
The fourth proportional to 19,708,738.47, 29,556,259.97 and 10,968,354.09 is: 16,448,720.21
Step by Step Solution
- Step 1: Write the proportion equation
19,708,738.47 : 29,556,259.97 = 10,968,354.09 : x - Step 2: Convert to fraction form
19,708,738.47/29,556,259.97 = 10,968,354.09/x - Step 3: Cross multiply
19,708,738.47x = 29,556,259.97 × 10,968,354.09 - Step 4: Simplify right side
19,708,738.47x = 324,183,524,872,211 - Step 5: Solve for x
x = 324,183,524,872,211/19,708,738.47 - Step 6: Final answer
x = 16,448,720.21
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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.