Finding the Fourth Proportional to 11,686,126.42, 16,126,917.70 and 6,387,828.56
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Solution
The fourth proportional to 11,686,126.42, 16,126,917.70 and 6,387,828.56 is: 8,815,237.98
Step by Step Solution
- Step 1: Write the proportion equation
11,686,126.42 : 16,126,917.70 = 6,387,828.56 : x - Step 2: Convert to fraction form
11,686,126.42/16,126,917.70 = 6,387,828.56/x - Step 3: Cross multiply
11,686,126.42x = 16,126,917.70 × 6,387,828.56 - Step 4: Simplify right side
11,686,126.42x = 103,015,985,399,323.14 - Step 5: Solve for x
x = 103,015,985,399,323.14/11,686,126.42 - Step 6: Final answer
x = 8,815,237.98
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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.