Finding the Fourth Proportional to 7,207,121.00, 9,945,828.20 and 3,943,936.58
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Solution
The fourth proportional to 7,207,121.00, 9,945,828.20 and 3,943,936.58 is: 5,442,633.14
Step by Step Solution
- Step 1: Write the proportion equation
7,207,121.00 : 9,945,828.20 = 3,943,936.58 : x - Step 2: Convert to fraction form
7,207,121.00/9,945,828.20 = 3,943,936.58/x - Step 3: Cross multiply
7,207,121.00x = 9,945,828.20 × 3,943,936.58 - Step 4: Simplify right side
7,207,121.00x = 39,225,715,616,506.26 - Step 5: Solve for x
x = 39,225,715,616,506.26/7,207,121.00 - Step 6: Final answer
x = 5,442,633.14
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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.