Finding the Fourth Proportional to 7,818,212.76, 10,789,114.93 and 4,286,003.07
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Solution
The fourth proportional to 7,818,212.76, 10,789,114.93 and 4,286,003.07 is: 5,914,673.99
Step by Step Solution
- Step 1: Write the proportion equation
7,818,212.76 : 10,789,114.93 = 4,286,003.07 : x - Step 2: Convert to fraction form
7,818,212.76/10,789,114.93 = 4,286,003.07/x - Step 3: Cross multiply
7,818,212.76x = 10,789,114.93 × 4,286,003.07 - Step 4: Simplify right side
7,818,212.76x = 46,242,179,691,132.83 - Step 5: Solve for x
x = 46,242,179,691,132.83/7,818,212.76 - Step 6: Final answer
x = 5,914,673.99
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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.