Finding the Fourth Proportional to 81,474,952.70, 112,438,391.25 and 46,674,369.02
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Solution
The fourth proportional to 81,474,952.70, 112,438,391.25 and 46,674,369.02 is: 64,412,322.94
Step by Step Solution
- Step 1: Write the proportion equation
81,474,952.70 : 112,438,391.25 = 46,674,369.02 : x - Step 2: Convert to fraction form
81,474,952.70/112,438,391.25 = 46,674,369.02/x - Step 3: Cross multiply
81,474,952.70x = 112,438,391.25 × 46,674,369.02 - Step 4: Simplify right side
81,474,952.70x = 5,247,990,965,217,639 - Step 5: Solve for x
x = 5,247,990,965,217,639/81,474,952.70 - Step 6: Final answer
x = 64,412,322.94
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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.