Finding the Fourth Proportional to 10,515,917.13, 14,512,009.37 and 5,687,021.13
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Solution
The fourth proportional to 10,515,917.13, 14,512,009.37 and 5,687,021.13 is: 7,848,112.81
Step by Step Solution
- Step 1: Write the proportion equation
10,515,917.13 : 14,512,009.37 = 5,687,021.13 : x - Step 2: Convert to fraction form
10,515,917.13/14,512,009.37 = 5,687,021.13/x - Step 3: Cross multiply
10,515,917.13x = 14,512,009.37 × 5,687,021.13 - Step 4: Simplify right side
10,515,917.13x = 82,530,103,925,947.98 - Step 5: Solve for x
x = 82,530,103,925,947.98/10,515,917.13 - Step 6: Final answer
x = 7,848,112.81
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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.