Finding the Fourth Proportional to 7,914,286.81, 10,913,043 and 5,155,858.99
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Solution
The fourth proportional to 7,914,286.81, 10,913,043 and 5,155,858.99 is: 7,109,435.41
Step by Step Solution
- Step 1: Write the proportion equation
7,914,286.81 : 10,913,043 = 5,155,858.99 : x - Step 2: Convert to fraction form
7,914,286.81/10,913,043 = 5,155,858.99/x - Step 3: Cross multiply
7,914,286.81x = 10,913,043 × 5,155,858.99 - Step 4: Simplify right side
7,914,286.81x = 56,266,110,859,806.57 - Step 5: Solve for x
x = 56,266,110,859,806.57/7,914,286.81 - Step 6: Final answer
x = 7,109,435.41
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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.