Finding the Fourth Proportional to 7,146,546.62, 9,862,288.56 and 3,883,378.95
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Solution
The fourth proportional to 7,146,546.62, 9,862,288.56 and 3,883,378.95 is: 5,359,092.42
Step by Step Solution
- Step 1: Write the proportion equation
7,146,546.62 : 9,862,288.56 = 3,883,378.95 : x - Step 2: Convert to fraction form
7,146,546.62/9,862,288.56 = 3,883,378.95/x - Step 3: Cross multiply
7,146,546.62x = 9,862,288.56 × 3,883,378.95 - Step 4: Simplify right side
7,146,546.62x = 38,299,003,792,729.81 - Step 5: Solve for x
x = 38,299,003,792,729.81/7,146,546.62 - Step 6: Final answer
x = 5,359,092.42
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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.