Finding the Fourth Proportional to 5,283,915, 7,291,803.76 and 3,218,930.46
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Solution
The fourth proportional to 5,283,915, 7,291,803.76 and 3,218,930.46 is: 4,442,124.68
Step by Step Solution
- Step 1: Write the proportion equation
5,283,915 : 7,291,803.76 = 3,218,930.46 : x - Step 2: Convert to fraction form
5,283,915/7,291,803.76 = 3,218,930.46/x - Step 3: Cross multiply
5,283,915x = 7,291,803.76 × 3,218,930.46 - Step 4: Simplify right side
5,283,915x = 23,471,809,231,406.53 - Step 5: Solve for x
x = 23,471,809,231,406.53/5,283,915 - Step 6: Final answer
x = 4,442,124.68
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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.