Finding the Fourth Proportional to 74,390,912.92, 102,660,687.48 and 40,901,806.96
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Solution
The fourth proportional to 74,390,912.92, 102,660,687.48 and 40,901,806.96 is: 56,445,168.59
Step by Step Solution
- Step 1: Write the proportion equation
74,390,912.92 : 102,660,687.48 = 40,901,806.96 : x - Step 2: Convert to fraction form
74,390,912.92/102,660,687.48 = 40,901,806.96/x - Step 3: Cross multiply
74,390,912.92x = 102,660,687.48 × 40,901,806.96 - Step 4: Simplify right side
74,390,912.92x = 4,199,007,621,687,849 - Step 5: Solve for x
x = 4,199,007,621,687,849/74,390,912.92 - Step 6: Final answer
x = 56,445,168.59
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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.