Finding the Fourth Proportional to 35,479,544.36, 48,958,838.70 and 20,013,430.28
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Solution
The fourth proportional to 35,479,544.36, 48,958,838.70 and 20,013,430.28 is: 27,616,879.60
Step by Step Solution
- Step 1: Write the proportion equation
35,479,544.36 : 48,958,838.70 = 20,013,430.28 : x - Step 2: Convert to fraction form
35,479,544.36/48,958,838.70 = 20,013,430.28/x - Step 3: Cross multiply
35,479,544.36x = 48,958,838.70 × 20,013,430.28 - Step 4: Simplify right side
35,479,544.36x = 979,834,304,912,216 - Step 5: Solve for x
x = 979,834,304,912,216/35,479,544.36 - Step 6: Final answer
x = 27,616,879.60
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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.