Finding the Fourth Proportional to 13,443,367.93, 18,551,762.97 and 7,642,149.94
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Solution
The fourth proportional to 13,443,367.93, 18,551,762.97 and 7,642,149.94 is: 10,546,118.73
Step by Step Solution
- Step 1: Write the proportion equation
13,443,367.93 : 18,551,762.97 = 7,642,149.94 : x - Step 2: Convert to fraction form
13,443,367.93/18,551,762.97 = 7,642,149.94/x - Step 3: Cross multiply
13,443,367.93x = 18,551,762.97 × 7,642,149.94 - Step 4: Simplify right side
13,443,367.93x = 141,775,354,268,079.72 - Step 5: Solve for x
x = 141,775,354,268,079.72/13,443,367.93 - Step 6: Final answer
x = 10,546,118.73
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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.