Finding the Fourth Proportional to 35,479,542.36, 48,958,835.94 and 20,013,428.28
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Solution
The fourth proportional to 35,479,542.36, 48,958,835.94 and 20,013,428.28 is: 27,616,876.84
Step by Step Solution
- Step 1: Write the proportion equation
35,479,542.36 : 48,958,835.94 = 20,013,428.28 : x - Step 2: Convert to fraction form
35,479,542.36/48,958,835.94 = 20,013,428.28/x - Step 3: Cross multiply
35,479,542.36x = 48,958,835.94 × 20,013,428.28 - Step 4: Simplify right side
35,479,542.36x = 979,834,151,757,476.38 - Step 5: Solve for x
x = 979,834,151,757,476.38/35,479,542.36 - Step 6: Final answer
x = 27,616,876.84
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1.5x scale
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.